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#1044 Contour maps in 3d views: extend part manager to drape map surface and lines on 3d geometry

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Add RivContourMapElevationProvider and extend RivContourMapProjectionPartMgr so the contour map surface and contour lines can be projected onto the terrain/grid geometry of the 3d view instead of only being drawn as a flat map.
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Magne Sjaastad committed 2026-09-07 09:32:04 +02:00
1 parent 4587ad4c98
commit b22fb02aa5
5 files changed
+494 -79
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ApplicationLibCode/ModelVisualization/RivContourMapProjectionPartMgr.h
+80 -18
View File
@@ -21,17 +21,22 @@
#include "ContourMap/RigContourPolygonsTools.h"
#include "cafDisplayCoordTransform.h"
#include "cafFontTools.h"
#include "cafPdmObject.h"
#include "cafPdmPointer.h"
#include "cafPdmUiNumberFormat.h"
#include "cvfColor3.h"
#include "cvfDrawableGeo.h"
#include "cvfDrawableText.h"
#include "cvfObject.h"
#include "cvfVector2.h"
#include "cvfVector4.h"
#include <optional>
class RigContourMapGrid;
class RivContourMapElevationProvider;
namespace cvf
{
@@ -42,17 +47,47 @@ class ModelBasicList;
class Part;
} // namespace cvf
//==================================================================================================
///
/// How the contour lines are drawn.
///
/// The defaults reproduce the appearance used by the 2d contour map views: one hairline per contour
/// level, coloured to contrast the level colour of the map underneath it.
///
//==================================================================================================
struct RivContourLineAppearance
{
// When not set, every contour level gets a colour contrasting its own level colour
std::optional<cvf::Color3f> color;
float lineWidth = 1.0f;
caf::FontTools::FontSize labelFontSize = caf::FontTools::FontSize::FONT_SIZE_10;
// Labels are drawn along the contour segment they belong to. The direction is a screen space one,
// which only lines up with the segment while the camera looks straight down at the map, so in a 3d
// view the text ends up rotated arbitrarily. Set this to keep the labels upright on screen instead.
bool alignLabelsWithCamera = false;
// The colour to draw a contour level in. Shared by the lines and their labels so the two cannot
// drift apart. levelColor is the map colour of the level, used when no explicit colour is set.
cvf::Color3f colorForLevel( const cvf::Color3f& levelColor ) const;
};
class RivContourMapProjectionPartMgr : public cvf::Object
{
public:
RivContourMapProjectionPartMgr( caf::PdmObject* contourMapProjection );
void appendProjectionToModel( cvf::ModelBasicList* model,
const caf::DisplayCoordTransform* displayCoordTransform,
const std::vector<cvf::Vec4d>& vertices,
const RigContourMapGrid& contourMapGrid,
const cvf::Color3f& backgroundColor,
cvf::ScalarMapper* scalarMapper ) const;
// elevationProvider controls where the geometry is placed vertically. When null, the geometry is
// placed on the horizontal plane at RigContourMapGrid::origin3d(), which is the behaviour used by
// the 2d contour map views.
void appendProjectionToModel( cvf::ModelBasicList* model,
const caf::DisplayCoordTransform* displayCoordTransform,
const std::vector<cvf::Vec4d>& vertices,
const RigContourMapGrid& contourMapGrid,
const cvf::Color3f& backgroundColor,
cvf::ScalarMapper* scalarMapper,
const RivContourMapElevationProvider* elevationProvider = nullptr ) const;
void appendContourLinesToModel( const cvf::Camera* camera,
cvf::ModelBasicList* model,
@@ -63,7 +98,9 @@ public:
bool showContourLines,
bool showContourLabels,
caf::NumberFormatType numberFormat,
int precision );
int precision,
const RivContourMapElevationProvider* elevationProvider = nullptr,
const RivContourLineAppearance& lineAppearance = {} );
void appendPickPointVisToModel( cvf::ModelBasicList* model,
const caf::DisplayCoordTransform* displayCoordTransform,
@@ -73,28 +110,53 @@ public:
cvf::ref<cvf::Vec2fArray> createTextureCoords( const std::vector<double>& values, cvf::ScalarMapper* scalarMapper ) const;
private:
static cvf::ref<cvf::DrawableText> createTextLabel( const cvf::Color3f& textColor, const cvf::Color3f& backgroundColor );
cvf::ref<cvf::Part> createProjectionMapPart( const caf::DisplayCoordTransform* displayCoordTransform,
const std::vector<cvf::Vec4d>& vertices,
const RigContourMapGrid& contourMapGrid,
const cvf::Color3f& backgroundColor,
cvf::ScalarMapper* scalarMapper ) const;
// Convert a contour map local vertex to domain coordinates. Without an elevation provider this is
// the vertex offset by RigContourMapGrid::origin3d(). With one, the z component is replaced by the
// elevation reported for the vertex position, and nothing is returned where the provider has no
// elevation to offer.
static std::optional<cvf::Vec3d> toDomainCoord( const cvf::Vec3d& localVertex,
const RigContourMapGrid& contourMapGrid,
const RivContourMapElevationProvider* elevationProvider );
static std::optional<cvf::Vec3d> toDisplayCoord( const cvf::Vec3d& localVertex,
const RigContourMapGrid& contourMapGrid,
const caf::DisplayCoordTransform* displayCoordTransform,
const RivContourMapElevationProvider* elevationProvider );
// The segments of a closed contour polygon in display coordinates, sampled densely enough to follow
// the elevation reported by the provider. Segments where no elevation is defined are left out.
static std::vector<std::pair<cvf::Vec3d, cvf::Vec3d>> resampledDisplaySegments( const std::vector<cvf::Vec3d>& localVertices,
const RigContourMapGrid& contourMapGrid,
const caf::DisplayCoordTransform* displayCoordTransform,
const RivContourMapElevationProvider* elevationProvider );
static cvf::ref<cvf::DrawableText>
createTextLabel( const cvf::Color3f& textColor, const cvf::Color3f& backgroundColor, caf::FontTools::FontSize fontSize );
cvf::ref<cvf::Part> createProjectionMapPart( const caf::DisplayCoordTransform* displayCoordTransform,
const std::vector<cvf::Vec4d>& vertices,
const RigContourMapGrid& contourMapGrid,
const cvf::Color3f& backgroundColor,
cvf::ScalarMapper* scalarMapper,
const RivContourMapElevationProvider* elevationProvider ) const;
std::vector<std::vector<cvf::ref<cvf::Drawable>>>
createContourPolygons( const caf::DisplayCoordTransform* displayCoordTransform,
const std::vector<std::vector<cvf::BoundingBox>>& labelBBoxes,
const std::vector<RigContourPolygonsTools::ContourPolygons>& contourLinePolygons,
cvf::ScalarMapper* scalarMapper,
const RigContourMapGrid& contourMapGrid ) const;
const RigContourMapGrid& contourMapGrid,
const RivContourMapElevationProvider* elevationProvider ) const;
std::vector<cvf::ref<cvf::Drawable>> createContourLabels( const cvf::Camera* camera,
const caf::DisplayCoordTransform* displayCoordTransform,
std::vector<std::vector<cvf::BoundingBox>>* labelBBoxes,
const std::vector<RigContourPolygonsTools::ContourPolygons>& contourLinePolygons,
const RigContourMapGrid& contourMapGrid,
const cvf::ScalarMapper* scalarMapper,
caf::NumberFormatType numberFormat,
int precision ) const;
const RigContourMapGrid& contourMapGrid,
const cvf::ScalarMapper* scalarMapper,
caf::NumberFormatType numberFormat,
int precision,
const RivContourMapElevationProvider* elevationProvider,
const RivContourLineAppearance& lineAppearance ) const;
cvf::ref<cvf::DrawableGeo> createPickPointVisDrawable( const caf::DisplayCoordTransform* displayCoordTransform,
const cvf::Vec2d& pickPoint,