mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-10-05 09:59:12 +00:00
131 lines
5.3 KiB
C++
131 lines
5.3 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include <vtkm/rendering/View2D.h>
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namespace vtkm
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{
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namespace rendering
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{
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View2D::View2D(const vtkm::rendering::Scene& scene,
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const vtkm::rendering::Mapper& mapper,
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const vtkm::rendering::Canvas& canvas,
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const vtkm::rendering::Color& backgroundColor,
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const vtkm::rendering::Color& foregroundColor)
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: View(scene, mapper, canvas, backgroundColor, foregroundColor)
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{
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}
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View2D::View2D(const vtkm::rendering::Scene& scene,
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const vtkm::rendering::Mapper& mapper,
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const vtkm::rendering::Canvas& canvas,
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const vtkm::rendering::Camera& camera,
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const vtkm::rendering::Color& backgroundColor,
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const vtkm::rendering::Color& foregroundColor)
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: View(scene, mapper, canvas, camera, backgroundColor, foregroundColor)
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{
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}
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void View2D::Paint()
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{
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this->GetCanvas().Clear();
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this->UpdateCameraProperties();
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this->RenderAnnotations();
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this->GetScene().Render(this->GetMapper(), this->GetCanvas(), this->GetCamera());
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}
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void View2D::RenderScreenAnnotations()
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{
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vtkm::Float32 viewportLeft;
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vtkm::Float32 viewportRight;
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vtkm::Float32 viewportTop;
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vtkm::Float32 viewportBottom;
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this->GetCamera().GetRealViewport(this->GetCanvas().GetWidth(),
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this->GetCanvas().GetHeight(),
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viewportLeft,
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viewportRight,
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viewportBottom,
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viewportTop);
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this->GetCanvas().BeginTextRenderingBatch();
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this->GetWorldAnnotator().BeginLineRenderingBatch();
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this->HorizontalAxisAnnotation.SetColor(AxisColor);
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this->HorizontalAxisAnnotation.SetScreenPosition(
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viewportLeft, viewportBottom, viewportRight, viewportBottom);
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vtkm::Bounds viewRange = this->GetCamera().GetViewRange2D();
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this->HorizontalAxisAnnotation.SetRangeForAutoTicks(viewRange.X.Min, viewRange.X.Max);
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this->HorizontalAxisAnnotation.SetMajorTickSize(0, .05, 1.0);
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this->HorizontalAxisAnnotation.SetMinorTickSize(0, .02, 1.0);
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this->HorizontalAxisAnnotation.SetLabelAlignment(TextAnnotation::HCenter, TextAnnotation::Top);
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this->HorizontalAxisAnnotation.Render(
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this->GetCamera(), this->GetWorldAnnotator(), this->GetCanvas());
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vtkm::Float32 windowaspect =
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vtkm::Float32(this->GetCanvas().GetWidth()) / vtkm::Float32(this->GetCanvas().GetHeight());
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this->VerticalAxisAnnotation.SetColor(AxisColor);
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this->VerticalAxisAnnotation.SetScreenPosition(
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viewportLeft, viewportBottom, viewportLeft, viewportTop);
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this->VerticalAxisAnnotation.SetRangeForAutoTicks(viewRange.Y.Min, viewRange.Y.Max);
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this->VerticalAxisAnnotation.SetMajorTickSize(.05 / windowaspect, 0, 1.0);
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this->VerticalAxisAnnotation.SetMinorTickSize(.02 / windowaspect, 0, 1.0);
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this->VerticalAxisAnnotation.SetLabelAlignment(TextAnnotation::Right, TextAnnotation::VCenter);
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this->VerticalAxisAnnotation.Render(
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this->GetCamera(), this->GetWorldAnnotator(), this->GetCanvas());
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const vtkm::rendering::Scene& scene = this->GetScene();
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if (scene.GetNumberOfActors() > 0)
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{
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//this->ColorBarAnnotation.SetAxisColor(vtkm::rendering::Color(1,1,1));
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this->ColorBarAnnotation.SetFieldName(scene.GetActor(0).GetScalarField().GetName());
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this->ColorBarAnnotation.SetRange(
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scene.GetActor(0).GetScalarRange().Min, scene.GetActor(0).GetScalarRange().Max, 5);
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this->ColorBarAnnotation.SetColorTable(scene.GetActor(0).GetColorTable());
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this->ColorBarAnnotation.Render(
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this->GetCamera(), this->GetWorldAnnotator(), this->GetCanvas());
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}
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this->GetWorldAnnotator().EndLineRenderingBatch();
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this->GetCanvas().EndTextRenderingBatch();
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}
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void View2D::RenderWorldAnnotations()
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{
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// 2D views don't have world annotations.
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}
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void View2D::UpdateCameraProperties()
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{
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// Modify the camera if our bounds are equal to enable an image to show
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vtkm::Bounds origCamBounds = this->GetCamera().GetViewRange2D();
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if (origCamBounds.Y.Min == origCamBounds.Y.Max)
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{
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origCamBounds.Y.Min -= .5;
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origCamBounds.Y.Max += .5;
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}
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// Set camera bounds with new top/bottom values
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this->GetCamera().SetViewRange2D(
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origCamBounds.X.Min, origCamBounds.X.Max, origCamBounds.Y.Min, origCamBounds.Y.Max);
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// if unchanged by user we always want to start with a curve being full-frame
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if (this->GetCamera().GetMode() == Camera::Mode::TwoD && this->GetCamera().GetXScale() == 1.0f)
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{
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vtkm::Float32 left, right, bottom, top;
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this->GetCamera().GetViewRange2D(left, right, bottom, top);
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this->GetCamera().SetXScale((static_cast<vtkm::Float32>(this->GetCanvas().GetWidth())) /
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(static_cast<vtkm::Float32>(this->GetCanvas().GetHeight())) *
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(top - bottom) / (right - left));
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}
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vtkm::Float32 left, right, bottom, top;
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this->GetCamera().GetViewRange2D(left, right, bottom, top);
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}
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}
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} // namespace vtkm::rendering
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