mirror of
https://github.com/OPM/ResInsight.git
synced 2025-02-25 18:55:39 -06:00
#3698 Scale bar. Take 1. Only vertical variant implemented so far
This commit is contained in:
Bjørn Erik Jensen
@@ -18,6 +18,8 @@ add_library( ${PROJECT_NAME}
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cafCategoryLegend.h
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cafOverlayScalarMapperLegend.h
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cafOverlayScalarMapperLegend.cpp
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cafOverlayScaleLegend.h
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cafOverlayScaleLegend.cpp
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cafInternalLegendRenderTools.h
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cafInternalLegendRenderTools.cpp
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cafCategoryMapper.cpp
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683
Fwk/AppFwk/cafVizExtensions/cafOverlayScaleLegend.cpp
Normal file
683
Fwk/AppFwk/cafVizExtensions/cafOverlayScaleLegend.cpp
Normal file
@@ -0,0 +1,683 @@
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//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2018- Ceetron Solutions AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#include "cvfBase.h"
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#include "cafOverlayScaleLegend.h"
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#include "cvfOpenGL.h"
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#include "cvfOpenGLResourceManager.h"
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#include "cvfGeometryBuilderDrawableGeo.h"
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#include "cvfGeometryUtils.h"
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#include "cvfViewport.h"
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#include "cvfCamera.h"
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#include "cvfTextDrawer.h"
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#include "cvfFont.h"
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#include "cvfShaderProgram.h"
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#include "cvfShaderProgramGenerator.h"
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#include "cvfShaderSourceProvider.h"
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#include "cvfShaderSourceRepository.h"
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#include "cvfUniform.h"
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#include "cvfMatrixState.h"
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#include "cvfBufferObjectManaged.h"
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#include "cvfGlyph.h"
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#include "cvfRenderStateDepth.h"
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#include "cvfRenderStateLine.h"
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#include "cafInternalLegendRenderTools.h"
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#include "cafTickMarkGenerator.h"
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#ifndef CVF_OPENGL_ES
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#include "cvfRenderState_FF.h"
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#endif
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#include "cvfScalarMapper.h"
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#include <array>
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#include "cvfRenderStateBlending.h"
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#include <algorithm>
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#include <cmath>
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namespace caf {
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using namespace cvf;
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//==================================================================================================
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///
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/// \class cvf::OverlayColorLegend
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/// \ingroup Render
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///
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///
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///
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//==================================================================================================
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//--------------------------------------------------------------------------------------------------
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/// Constructor
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//--------------------------------------------------------------------------------------------------
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OverlayScaleLegend::OverlayScaleLegend(Font* font)
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: TitledOverlayFrame(font, 200, 200)
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, m_tickNumberPrecision(4)
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, m_numberFormat(AUTO)
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, m_Layout(Vec2ui(200u, 200u))
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, m_font(font)
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{
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CVF_ASSERT(font);
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CVF_ASSERT(!font->isEmpty());
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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OverlayScaleLegend::~OverlayScaleLegend()
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{
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// Empty destructor to avoid errors with undefined types when cvf::ref's destructor gets called
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}
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//--------------------------------------------------------------------------------------------------
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/// Hardware rendering using shader programs
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::render(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size)
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{
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renderGeneric(oglContext, position, size, false);
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}
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//--------------------------------------------------------------------------------------------------
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/// Software rendering using software
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::renderSoftware(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size)
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{
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renderGeneric(oglContext, position, size, true);
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}
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//--------------------------------------------------------------------------------------------------
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/// Set up camera/viewport and render
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::renderGeneric(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size, bool software)
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{
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if (size.x() <= 0 || size.y() <= 0)
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{
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return;
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}
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Camera camera;
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camera.setViewport(position.x(), position.y(), size.x(), size.y());
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camera.setProjectionAsPixelExact2D();
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camera.setViewMatrix(Mat4d::IDENTITY);
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camera.applyOpenGL();
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camera.viewport()->applyOpenGL(oglContext, Viewport::CLEAR_DEPTH);
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m_Layout = LayoutInfo(size);
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layoutInfo(&m_Layout);
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m_textDrawer = new TextDrawer(this->font());
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// Set up text drawer
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float maxLegendRightPos = 0;
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setupTextDrawer(m_textDrawer.p(), &m_Layout );
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Vec2f backgroundSize(size);
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// Do the actual rendering
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if (software)
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{
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if ( this->backgroundEnabled() )
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{
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InternalLegendRenderTools::renderBackgroundImmediateMode(oglContext,
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backgroundSize,
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this->backgroundColor(),
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this->backgroundFrameColor());
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}
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renderLegendImmediateMode(oglContext, &m_Layout);
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m_textDrawer->renderSoftware(oglContext, camera);
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}
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else
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{
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const MatrixState matrixState(camera);
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if ( this->backgroundEnabled() )
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{
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InternalLegendRenderTools::renderBackgroundUsingShaders(oglContext,
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matrixState,
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backgroundSize,
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this->backgroundColor(),
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this->backgroundFrameColor());
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}
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renderLegendUsingShaders(oglContext, &m_Layout, matrixState);
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m_textDrawer->render(oglContext, camera);
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}
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CVF_CHECK_OGL(oglContext);
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::setupTextDrawer(TextDrawer* textDrawer, const LayoutInfo* layout)
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{
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CVF_ASSERT(layout);
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textDrawer->setVerticalAlignment(TextDrawer::CENTER);
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textDrawer->setTextColor(this->textColor());
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m_visibleTickLabels.clear();
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const float textX = layout->startPt.x() + layout->majorTickSize / 2.0f /* tickEndX*/ + layout->tickTextLeadSpace;
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const float overlapTolerance = 1.2f * layout->charHeight;
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float lastVisibleTextY = 0.0;
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size_t numTicks = layout->ticks.size();
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size_t it;
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for (it = 0; it < numTicks; it++)
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{
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if(!layout->ticks[it].isMajor) continue;
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float textY = static_cast<float>(layout->startPt.y() + layout->ticks[it].displayValue);
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// Always draw first and last tick label. For all others, skip drawing if text ends up
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// on top of the previous label.
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if (it != 0 && it != (numTicks - 1))
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{
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if (cvf::Math::abs(textY - lastVisibleTextY) < overlapTolerance)
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{
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m_visibleTickLabels.push_back(false);
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continue;
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}
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// Make sure it does not overlap the last tick as well
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float lastTickY = static_cast<float>(layout->startPt.y() + layout->axisLength);
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if (cvf::Math::abs(textY - lastTickY) < overlapTolerance)
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{
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m_visibleTickLabels.push_back(false);
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continue;
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}
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}
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double tickValue = layout->ticks[it].domainValue;
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String valueString;
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switch (m_numberFormat)
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{
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case FIXED:
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valueString = String::number(tickValue, 'f', m_tickNumberPrecision);
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break;
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case SCIENTIFIC:
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valueString = String::number(tickValue, 'e', m_tickNumberPrecision);
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break;
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default:
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valueString = String::number(tickValue);
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break;
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}
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Vec2f pos(textX, textY);
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textDrawer->addText(valueString, pos);
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lastVisibleTextY = textY;
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m_visibleTickLabels.push_back(true);
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}
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float titleY = static_cast<float>(layout->overallLegendSize.y()) - layout->margins.y() - layout->charHeight/2.0f;
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for (it = 0; it < this->titleStrings().size(); it++)
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{
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Vec2f pos(layout->margins.x(), titleY);
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textDrawer->addText(this->titleStrings()[it], pos);
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titleY -= layout->lineSpacing;
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}
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}
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//--------------------------------------------------------------------------------------------------
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/// Draw the legend using shader programs
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::renderLegendUsingShaders(OpenGLContext* oglContext, LayoutInfo* layout, const MatrixState& matrixState)
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{
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CVF_CALLSITE_OPENGL(oglContext);
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CVF_TIGHT_ASSERT(layout);
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CVF_TIGHT_ASSERT(layout->overallLegendSize.x() > 0);
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CVF_TIGHT_ASSERT(layout->overallLegendSize.y() > 0);
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RenderStateDepth depth(false);
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depth.applyOpenGL(oglContext);
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RenderStateLine line(static_cast<float>(this->lineWidth()));
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line.applyOpenGL(oglContext);
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// All vertices. Initialized here to set Z to zero once and for all.
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static float vertexArray[] =
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{
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f
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};
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// Per vector convenience pointers
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float* v0 = &vertexArray[0];
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float* v1 = &vertexArray[3];
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float* v2 = &vertexArray[6];
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float* v3 = &vertexArray[9];
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float* v4 = &vertexArray[12];
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// Connects
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static const ushort trianglesConnects[] = { 0, 1, 4, 0, 4, 3 };
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ref<ShaderProgram> shaderProgram = oglContext->resourceManager()->getLinkedUnlitColorShaderProgram(oglContext);
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CVF_TIGHT_ASSERT(shaderProgram.notNull());
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if (shaderProgram->useProgram(oglContext))
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{
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shaderProgram->clearUniformApplyTracking();
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shaderProgram->applyFixedUniforms(oglContext, matrixState);
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}
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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glEnableVertexAttribArray(ShaderProgram::VERTEX);
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glVertexAttribPointer(ShaderProgram::VERTEX, 3, GL_FLOAT, GL_FALSE, 0, vertexArray);
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// Draw axis
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{
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v0[0] = layout->startPt.x();
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v0[1] = layout->startPt.y();
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v1[0] = v0[0];
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v1[1] = v0[1] + layout->axisLength;
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static const ushort axisConnects[] = { 0, 1 };
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UniformFloat uniformColor("u_color", Color4f(this->lineColor()));
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shaderProgram->applyUniform(oglContext, uniformColor);
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#ifdef CVF_OPENGL_ES
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glDrawElements(GL_LINES, 2, GL_UNSIGNED_SHORT, axisConnects);
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#else
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glDrawRangeElements(GL_LINES, 0, 3, 2, GL_UNSIGNED_SHORT, axisConnects);
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#endif
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}
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// Draw ticks
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for (const auto& tickInfo : layout->ticks)
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{
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if (tickInfo.isMajor)
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{
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v0[0] = layout->startPt.x() - layout->majorTickSize / 2.0f;
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v0[1] = static_cast<float>(tickInfo.displayValue) + layout->startPt.y();
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v1[0] = v0[0] + layout->majorTickSize;
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v1[1] = v0[1];
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}
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else
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{
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v0[0] = layout->startPt.x() - layout->minorTickSize / 2.0f;
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v0[1] = static_cast<float>(tickInfo.displayValue) + layout->startPt.y();
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v1[0] = v0[0] + layout->minorTickSize;
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v1[1] = v0[1];
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}
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static const ushort tickConnects[] = {0, 1};
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UniformFloat uniformColor("u_color", Color4f(this->lineColor()));
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shaderProgram->applyUniform(oglContext, uniformColor);
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#ifdef CVF_OPENGL_ES
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glDrawElements(GL_LINES, 2, GL_UNSIGNED_SHORT, axisConnects);
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#else
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glDrawRangeElements(GL_LINES, 0, 3, 2, GL_UNSIGNED_SHORT, tickConnects);
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#endif
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}
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glDisableVertexAttribArray(ShaderProgram::VERTEX);
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CVF_TIGHT_ASSERT(shaderProgram.notNull());
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shaderProgram->useNoProgram(oglContext);
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// Reset render states
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RenderStateDepth resetDepth;
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resetDepth.applyOpenGL(oglContext);
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RenderStateLine resetLine;
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resetLine.applyOpenGL(oglContext);
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CVF_CHECK_OGL(oglContext);
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}
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//--------------------------------------------------------------------------------------------------
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/// Draw the legend using immediate mode OpenGL
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//--------------------------------------------------------------------------------------------------
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void OverlayScaleLegend::renderLegendImmediateMode(OpenGLContext* oglContext, LayoutInfo* layout)
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{
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#if 0
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#ifdef CVF_OPENGL_ES
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CVF_UNUSED(layout);
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CVF_FAIL_MSG("Not supported on OpenGL ES");
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#else
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CVF_TIGHT_ASSERT(layout);
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CVF_TIGHT_ASSERT(layout->overallLegendSize.x() > 0);
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CVF_TIGHT_ASSERT(layout->overallLegendSize.y() > 0);
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RenderStateDepth depth(false);
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depth.applyOpenGL(oglContext);
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RenderStateLighting_FF lighting(false);
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lighting.applyOpenGL(oglContext);
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// All vertices. Initialized here to set Z to zero once and for all.
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static float vertexArray[] =
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{
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
|
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0.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 0.0f,
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};
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// Per vector convenience pointers
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float* v0 = &vertexArray[0];
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float* v1 = &vertexArray[3];
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float* v2 = &vertexArray[6];
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float* v3 = &vertexArray[9];
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float* v4 = &vertexArray[12];
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// Constant coordinates
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v0[0] = v3[0] = layout->tickStartX;
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v1[0] = v4[0] = layout->tickMidX;
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// Render color bar as one colored quad per pixel
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int legendHeightPixelCount = static_cast<int>(layout->tickYPixelPos->get(m_tickValues.size() - 1) - layout->tickYPixelPos->get(0) + 0.01);
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if (m_scalarMapper.notNull())
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{
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int iPx;
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for (iPx = 0; iPx < legendHeightPixelCount; iPx++)
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{
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const Color3ub& clr = m_scalarMapper->mapToColor(m_scalarMapper->domainValue((iPx+0.5)/legendHeightPixelCount));
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float y0 = static_cast<float>(layout->colorBarRect.min().y() + iPx);
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float y1 = static_cast<float>(layout->colorBarRect.min().y() + iPx + 1);
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// Dynamic coordinates for rectangle
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v0[1] = v1[1] = y0;
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v3[1] = v4[1] = y1;
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// Draw filled rectangle elements
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glColor3ubv(clr.ptr());
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glBegin(GL_TRIANGLE_FAN);
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glVertex3fv(v0);
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glVertex3fv(v1);
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glVertex3fv(v4);
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glVertex3fv(v3);
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glEnd();
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}
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}
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||||
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// Render frame
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||||
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// Dynamic coordinates for tickmarks-lines
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bool isRenderingFrame = true;
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if (isRenderingFrame)
|
||||
{
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v0[0] = v2[0] = layout->colorBarRect.min().x()-0.5f;
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||||
v1[0] = v3[0] = layout->colorBarRect.max().x()-0.5f;
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v0[1] = v1[1] = layout->colorBarRect.min().y()-0.5f;
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v2[1] = v3[1] = layout->colorBarRect.max().y()-0.5f;
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||||
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glColor3fv(this->textColor().ptr());
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glBegin(GL_LINES);
|
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glVertex3fv(v0);
|
||||
glVertex3fv(v1);
|
||||
glVertex3fv(v1);
|
||||
glVertex3fv(v3);
|
||||
glVertex3fv(v3);
|
||||
glVertex3fv(v2);
|
||||
glVertex3fv(v2);
|
||||
glVertex3fv(v0);
|
||||
glEnd();
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||||
|
||||
}
|
||||
|
||||
// Render tickmarks
|
||||
bool isRenderingTicks = true;
|
||||
|
||||
if (isRenderingTicks)
|
||||
{
|
||||
// Constant coordinates
|
||||
v0[0] = layout->tickStartX;
|
||||
v1[0] = layout->tickMidX - 0.5f*(layout->tickEndX - layout->tickMidX) - 0.5f;
|
||||
v2[0] = layout->tickMidX;
|
||||
v3[0] = layout->tickEndX - 0.5f*(layout->tickEndX - layout->tickMidX) - 0.5f;
|
||||
v4[0] = layout->tickEndX;
|
||||
|
||||
size_t ic;
|
||||
for (ic = 0; ic < m_tickValues.size(); ic++)
|
||||
{
|
||||
float y0 = static_cast<float>(layout->colorBarRect.min().y() + layout->tickYPixelPos->get(ic) - 0.5f);
|
||||
|
||||
// Dynamic coordinates for tickmarks-lines
|
||||
v0[1] = v1[1] = v2[1] = v3[1] = v4[1] = y0;
|
||||
|
||||
glColor3fv(this->textColor().ptr());
|
||||
glBegin(GL_LINES);
|
||||
if ( m_visibleTickLabels[ic])
|
||||
{
|
||||
glVertex3fv(v0);
|
||||
glVertex3fv(v4);
|
||||
}
|
||||
else
|
||||
{
|
||||
glVertex3fv(v2);
|
||||
glVertex3fv(v3);
|
||||
}
|
||||
glEnd();
|
||||
}
|
||||
}
|
||||
|
||||
// Reset render states
|
||||
RenderStateLighting_FF resetLighting;
|
||||
resetLighting.applyOpenGL(oglContext);
|
||||
RenderStateDepth resetDepth;
|
||||
resetDepth.applyOpenGL(oglContext);
|
||||
|
||||
CVF_CHECK_OGL(oglContext);
|
||||
#endif // CVF_OPENGL_ES
|
||||
#endif // 0
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
/// Get layout information
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
void OverlayScaleLegend::layoutInfo(LayoutInfo* layout)
|
||||
{
|
||||
CVF_TIGHT_ASSERT(layout);
|
||||
|
||||
ref<Glyph> glyph = this->font()->getGlyph(L'A');
|
||||
layout->charHeight = static_cast<float>(glyph->height());
|
||||
layout->lineSpacing = layout->charHeight*1.5f;
|
||||
layout->margins = Vec2f(8.0f, 8.0f);
|
||||
layout->tickTextLeadSpace = 5.0f;
|
||||
layout->majorTickSize = 9.0f;
|
||||
layout->minorTickSize = 5.0f;
|
||||
|
||||
float maxAxisLength = static_cast<float>(layout->overallLegendSize.y())
|
||||
- 2*layout->margins.y()
|
||||
- static_cast<float>(this->titleStrings().size()) * layout->lineSpacing
|
||||
- layout->lineSpacing;
|
||||
|
||||
auto currentScale = m_currentScale != 0.0 ? m_currentScale : 1.0;
|
||||
layout->startPt = {layout->margins.x() + layout->majorTickSize / 2.0f, layout->margins.y() + layout->charHeight / 2.0f };
|
||||
|
||||
layout->ticks.clear();
|
||||
size_t numTicks = m_ticksInDomain.size();
|
||||
|
||||
if (numTicks > 1)
|
||||
{
|
||||
double tickSpacingInDomain = m_ticksInDomain[1] - m_ticksInDomain[0];
|
||||
bool finished = false;
|
||||
for (size_t i = 0; i < numTicks; i++)
|
||||
{
|
||||
for (size_t j = 0; j < 2; j++)
|
||||
{
|
||||
double tickInDomain = m_ticksInDomain[i] + ((double)j * tickSpacingInDomain / 2.0);
|
||||
double tickInDisplay = tickInDomain * currentScale;
|
||||
|
||||
if (tickInDisplay - layout->startPt.y() < maxAxisLength)
|
||||
{
|
||||
layout->ticks.emplace_back(LayoutInfo::Tick(tickInDisplay, tickInDomain, j == 0));
|
||||
}
|
||||
else
|
||||
{
|
||||
finished = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (finished) break;
|
||||
}
|
||||
layout->axisLength = static_cast<float>(layout->ticks.back().displayValue);
|
||||
}
|
||||
else
|
||||
layout->axisLength = 0;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
///
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
void OverlayScaleLegend::setTickPrecision(int precision)
|
||||
{
|
||||
m_tickNumberPrecision = precision;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
///
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
void OverlayScaleLegend::setTickFormat(NumberFormat format)
|
||||
{
|
||||
m_numberFormat = format;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
///
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
cvf::Vec2ui OverlayScaleLegend::preferredSize()
|
||||
{
|
||||
LayoutInfo layout({200,200}); // Use default size
|
||||
layoutInfo(&layout);
|
||||
|
||||
float prefferredYSize = 400;
|
||||
|
||||
//float prefferredYSize = 2 * layout.margins.y()
|
||||
// + layout.lineSpacing * this->titleStrings().size()
|
||||
// + 1.5f * layout.lineSpacing * m_tickValues.size();
|
||||
|
||||
unsigned int maxTickTextWidth = 0;
|
||||
for (double tickValue : m_ticksInDomain )
|
||||
{
|
||||
String valueString;
|
||||
switch ( m_numberFormat )
|
||||
{
|
||||
case FIXED:
|
||||
valueString = String::number(tickValue, 'f', m_tickNumberPrecision);
|
||||
break;
|
||||
case SCIENTIFIC:
|
||||
valueString = String::number(tickValue, 'e', m_tickNumberPrecision);
|
||||
break;
|
||||
default:
|
||||
valueString = String::number(tickValue);
|
||||
break;
|
||||
}
|
||||
unsigned int textWidth = this->font()->textExtent(valueString).x();
|
||||
maxTickTextWidth = maxTickTextWidth < textWidth ? textWidth : maxTickTextWidth;
|
||||
}
|
||||
|
||||
float prefferredXSize = layout.margins.x() + layout.tickTextLeadSpace + maxTickTextWidth;
|
||||
|
||||
for (const cvf::String& titleLine : titleStrings())
|
||||
{
|
||||
float titleWidth = this->font()->textExtent(titleLine).x() + 2*layout.margins.x();
|
||||
prefferredXSize = prefferredXSize < titleWidth ? titleWidth : prefferredXSize;
|
||||
}
|
||||
|
||||
prefferredXSize = std::min(prefferredXSize, 400.0f);
|
||||
|
||||
return { (unsigned int)(std::ceil(prefferredXSize)), (unsigned int)(std::ceil(prefferredYSize)) };
|
||||
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
///
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
void OverlayScaleLegend::setDisplayCoordTransform(const caf::DisplayCoordTransform* displayCoordTransform)
|
||||
{
|
||||
m_dispalyCoordsTransform = displayCoordTransform;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
///
|
||||
//--------------------------------------------------------------------------------------------------
|
||||
void OverlayScaleLegend::updateFromCamera(const Camera* camera)
|
||||
{
|
||||
auto windowSize = Vec2ui(camera->viewport()->width(), camera->viewport()->height());
|
||||
|
||||
Vec3d windowOrigoInDomain;
|
||||
Vec3d windowMaxInDomain;
|
||||
camera->unproject(Vec3d(0, 0, 0), &windowOrigoInDomain);
|
||||
camera->unproject(Vec3d(windowSize.x(), windowSize.y(), 0), &windowMaxInDomain);
|
||||
|
||||
if (m_dispalyCoordsTransform.notNull())
|
||||
{
|
||||
windowOrigoInDomain = m_dispalyCoordsTransform->transformToDomainCoord(windowOrigoInDomain);
|
||||
windowMaxInDomain = m_dispalyCoordsTransform->transformToDomainCoord(windowMaxInDomain);
|
||||
}
|
||||
|
||||
Vec3d windowOrigoPoint;
|
||||
Vec3d windowMaxPoint;
|
||||
camera->project(windowOrigoInDomain, &windowOrigoPoint);
|
||||
camera->project(windowMaxInDomain, &windowMaxPoint);
|
||||
|
||||
m_currentScale = (windowMaxPoint.y() - windowOrigoPoint.y()) / (windowMaxInDomain.y() - windowOrigoInDomain.y());
|
||||
|
||||
auto textSize = m_font->textExtent(String::number(-1.999e-17));
|
||||
int xTickMaxCount = windowSize.x() / (2 * textSize.x());
|
||||
int yTickMaxCount = windowSize.y() / (2 * textSize.x());
|
||||
|
||||
double minDomainYStepSize = (windowMaxInDomain.y() - windowOrigoInDomain.y()) / yTickMaxCount;
|
||||
caf::TickMarkGenerator yTickCreator(windowOrigoInDomain.y(), windowMaxInDomain.y(), minDomainYStepSize);
|
||||
auto ticks = yTickCreator.tickMarkValues();
|
||||
|
||||
m_ticksInDomain.clear();
|
||||
for (const auto& tick : ticks)
|
||||
{
|
||||
m_ticksInDomain.push_back(tick - ticks.front());
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace cvf
|
||||
|
||||
162
Fwk/AppFwk/cafVizExtensions/cafOverlayScaleLegend.h
Normal file
162
Fwk/AppFwk/cafVizExtensions/cafOverlayScaleLegend.h
Normal file
@@ -0,0 +1,162 @@
|
||||
//##################################################################################################
|
||||
//
|
||||
// Custom Visualization Core library
|
||||
// Copyright (C) 2018- Ceetron Solutions AS
|
||||
//
|
||||
// This library may be used under the terms of either the GNU General Public License or
|
||||
// the GNU Lesser General Public License as follows:
|
||||
//
|
||||
// GNU General Public License Usage
|
||||
// This library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
// FITNESS FOR A PARTICULAR PURPOSE.
|
||||
//
|
||||
// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
|
||||
// for more details.
|
||||
//
|
||||
// GNU Lesser General Public License Usage
|
||||
// This library is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation; either version 2.1 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
// FITNESS FOR A PARTICULAR PURPOSE.
|
||||
//
|
||||
// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
|
||||
// for more details.
|
||||
//
|
||||
//##################################################################################################
|
||||
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "cafDisplayCoordTransform.h"
|
||||
#include "cafTitledOverlayFrame.h"
|
||||
#include "cvfOverlayItem.h"
|
||||
#include "cvfArray.h"
|
||||
#include "cvfCamera.h"
|
||||
#include "cvfString.h"
|
||||
#include "cvfRect.h"
|
||||
|
||||
namespace cvf {
|
||||
class Font;
|
||||
class ShaderProgram;
|
||||
class MatrixState;
|
||||
class TextDrawer;
|
||||
class ScalarMapper;
|
||||
}
|
||||
|
||||
namespace caf {
|
||||
|
||||
|
||||
//==================================================================================================
|
||||
//
|
||||
// Overlay color legend
|
||||
//
|
||||
//==================================================================================================
|
||||
class OverlayScaleLegend : public caf::TitledOverlayFrame
|
||||
{
|
||||
using Font = cvf::Font;
|
||||
using ScalarMapper = cvf::ScalarMapper;
|
||||
using OpenGLContext = cvf::OpenGLContext;
|
||||
using Vec2i = cvf::Vec2i;
|
||||
using Vec2ui = cvf::Vec2ui;
|
||||
using Color3f = cvf::Color3f;
|
||||
using Color4f = cvf::Color4f;
|
||||
using String = cvf::String;
|
||||
using DoubleArray = cvf::DoubleArray;
|
||||
using MatrixState = cvf::MatrixState;
|
||||
using Vec2f = cvf::Vec2f;
|
||||
using Rectf = cvf::Rectf;
|
||||
using TextDrawer = cvf::TextDrawer;
|
||||
using Camera = cvf::Camera;
|
||||
|
||||
public:
|
||||
OverlayScaleLegend(Font* font);
|
||||
virtual ~OverlayScaleLegend();
|
||||
|
||||
void setTickPrecision(int precision);
|
||||
enum NumberFormat { AUTO, SCIENTIFIC, FIXED};
|
||||
void setTickFormat(NumberFormat format);
|
||||
|
||||
virtual cvf::Vec2ui preferredSize() override;
|
||||
|
||||
void setDisplayCoordTransform(const caf::DisplayCoordTransform* displayCoordTransform);
|
||||
void updateFromCamera(const Camera* camera);
|
||||
|
||||
protected:
|
||||
void render(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size) override;
|
||||
void renderSoftware(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size) override;
|
||||
|
||||
struct LayoutInfo
|
||||
{
|
||||
struct Tick
|
||||
{
|
||||
Tick(double displayValue, double domainValue, bool isMajor)
|
||||
: displayValue(displayValue)
|
||||
, domainValue(domainValue)
|
||||
, isMajor(isMajor) {}
|
||||
double displayValue;
|
||||
double domainValue;
|
||||
bool isMajor;
|
||||
};
|
||||
|
||||
LayoutInfo(const Vec2ui& setSize)
|
||||
{
|
||||
overallLegendSize = setSize;
|
||||
}
|
||||
|
||||
float charHeight;
|
||||
float lineSpacing;
|
||||
Vec2f margins;
|
||||
float tickTextLeadSpace;
|
||||
|
||||
//Rectf colorBarRect;
|
||||
Vec2f startPt;
|
||||
float axisLength;
|
||||
float majorTickSize;
|
||||
float minorTickSize;
|
||||
|
||||
std::vector<Tick> ticks;
|
||||
|
||||
Vec2ui overallLegendSize;
|
||||
};
|
||||
|
||||
void layoutInfo(LayoutInfo* layout);
|
||||
|
||||
void renderGeneric(OpenGLContext* oglContext,
|
||||
const Vec2i& position,
|
||||
const Vec2ui& size,
|
||||
bool software);
|
||||
void renderLegendUsingShaders(OpenGLContext* oglContext,
|
||||
LayoutInfo* layout,
|
||||
const MatrixState& matrixState);
|
||||
void renderLegendImmediateMode(OpenGLContext* oglContext,
|
||||
LayoutInfo* layout);
|
||||
void setupTextDrawer(TextDrawer* textDrawer,
|
||||
const LayoutInfo* layout);
|
||||
|
||||
protected:
|
||||
std::vector<bool> m_visibleTickLabels; // Skip tick labels ending up on top of previous visible label
|
||||
int m_tickNumberPrecision;
|
||||
NumberFormat m_numberFormat;
|
||||
|
||||
LayoutInfo m_Layout;
|
||||
cvf::ref<TextDrawer> m_textDrawer;
|
||||
cvf::cref<ScalarMapper> m_scalarMapper;
|
||||
|
||||
cvf::ref<Font> m_font;
|
||||
|
||||
cvf::cref<caf::DisplayCoordTransform> m_dispalyCoordsTransform;
|
||||
double m_currentScale = 0.0; // [pixels/length]
|
||||
std::vector<double> m_ticksInDomain;
|
||||
};
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user