Mercurial > hg > orthanc-stone
view OrthancStone/Sources/Scene2DViewport/MeasureToolsToolbox.cpp @ 1851:739a69562826
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 29 Jun 2021 14:25:58 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2021 Osimis S.A., Belgium * * This program 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 3 of * the License, or (at your option) any later version. * * This program 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 for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "MeasureToolsToolbox.h" #include "PredeclaredTypes.h" #include "LayerHolder.h" #include "ViewportController.h" #include "../Scene2D/TextSceneLayer.h" #include "../Scene2D/Scene2D.h" #include "../StoneException.h" #include <boost/math/constants/constants.hpp> namespace { double g_pi = boost::math::constants::pi<double>(); } namespace OrthancStone { void GetPositionOnBisectingLine( ScenePoint2D& result , const ScenePoint2D& p1 , const ScenePoint2D& c , const ScenePoint2D& p2 , const double d) { // TODO: fix correct half-plane double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX()); double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX()); double angle = 0.5 * (p1cAngle + p2cAngle); double unitVectorX = cos(angle); double unitVectorY = sin(angle); double posX = c.GetX() + d * unitVectorX; double posY = c.GetX() + d * unitVectorY; result = ScenePoint2D(posX, posY); } double RadiansToDegrees(double angleRad) { static const double factor = 180.0 / g_pi; return angleRad * factor; } void AddSquare(PolylineSceneLayer::Chain& chain, const Scene2D& scene, const ScenePoint2D& centerS, const double& sideLengthS) { /* The scene is required here because we need to draw the square with its sides parallel to the SCREEN axis, not the SCENE axis */ // get the scaling factor const double sceneToCanvas = scene.GetSceneToCanvasTransform().ComputeZoom(); chain.clear(); chain.reserve(4); ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform()); //TODO: take DPI into account double handleLX = centerC.GetX() - sideLengthS * sceneToCanvas * 0.5; double handleTY = centerC.GetY() - sideLengthS * sceneToCanvas * 0.5; double handleRX = centerC.GetX() + sideLengthS * sceneToCanvas * 0.5; double handleBY = centerC.GetY() + sideLengthS * sceneToCanvas * 0.5; ScenePoint2D LTC(handleLX, handleTY); ScenePoint2D RTC(handleRX, handleTY); ScenePoint2D RBC(handleRX, handleBY); ScenePoint2D LBC(handleLX, handleBY); ScenePoint2D startLT = LTC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startRT = RTC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startRB = RBC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startLB = LBC.Apply(scene.GetCanvasToSceneTransform()); chain.push_back(startLT); chain.push_back(startRT); chain.push_back(startRB); chain.push_back(startLB); } #if 0 void AddArc( PolylineSceneLayer::Chain & chain , const Scene2D & scene , const ScenePoint2D & p1 , const ScenePoint2D & c , const ScenePoint2D & p2 , const double& radiusS , const bool clockwise , const int subdivisionsCount) { double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX()); double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX()); AddArc( chain, scene, c, radiusS, p1cAngle, p2cAngle, clockwise, subdivisionsCount); } #endif void AddShortestArc( PolylineSceneLayer::Chain& chain , const ScenePoint2D& p1 , const ScenePoint2D& c , const ScenePoint2D& p2 , const double& radiusS , const int subdivisionsCount) { double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX()); double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX()); AddShortestArc( chain, c, radiusS, p1cAngle, p2cAngle, subdivisionsCount); } void AddShortestArc( PolylineSceneLayer::Chain& chain , const ScenePoint2D& centerS , const double& radiusS , const double startAngleRad , const double endAngleRad , const int subdivisionsCount) { // this gives a signed difference between angle which // is the smallest difference (in magnitude) between // the angles double delta = NormalizeAngle(endAngleRad - startAngleRad); chain.clear(); chain.reserve(subdivisionsCount + 1); double angleIncr = delta / static_cast<double>(subdivisionsCount); double theta = startAngleRad; for (int i = 0; i < subdivisionsCount + 1; ++i) { double offsetX = radiusS * cos(theta); double offsetY = radiusS * sin(theta); double pointX = centerS.GetX() + offsetX; double pointY = centerS.GetY() + offsetY; chain.push_back(ScenePoint2D(pointX, pointY)); theta += angleIncr; } } #if 0 void AddArc( PolylineSceneLayer::Chain & chain , const Scene2D & scene , const ScenePoint2D & centerS , const double& radiusS , const double startAngleRad , const double endAngleRad , const bool clockwise , const int subdivisionsCount) { double startAngleRadN = NormalizeAngle(startAngleRad); double endAngleRadN = NormalizeAngle(endAngleRad); double angle1Rad = std::min(startAngleRadN, endAngleRadN); double angle2Rad = std::max(startAngleRadN, endAngleRadN); // now we are sure angle1Rad < angle2Rad // this means that if we draw from 1 to 2, it will be clockwise ( // increasing angles). // let's fix this: if (!clockwise) { angle2Rad -= 2 * g_pi; // now we are sure angle2Rad < angle1Rad (since they were normalized) // and, thus, going from 1 to 2 means the angle values will DECREASE, // which is the definition of anticlockwise } chain.clear(); chain.reserve(subdivisionsCount + 1); double angleIncr = (angle2Rad - angle1Rad) / static_cast<double>(subdivisionsCount); double theta = angle1Rad; for (int i = 0; i < subdivisionsCount + 1; ++i) { double offsetX = radiusS * cos(theta); double offsetY = radiusS * sin(theta); double pointX = centerS.GetX() + offsetX; double pointY = centerS.GetY() + offsetY; chain.push_back(ScenePoint2D(pointX, pointY)); theta += angleIncr; } } #endif void AddCircle(PolylineSceneLayer::Chain& chain, const ScenePoint2D& centerS, const double& radiusS, const int numSubdivisions) { //ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform()); //TODO: take DPI into account // TODO: automatically compute the number for segments for smooth // display based on the radius in pixels. chain.clear(); chain.reserve(numSubdivisions); double angleIncr = (2.0 * g_pi) / static_cast<double>(numSubdivisions); double theta = 0; for (int i = 0; i < numSubdivisions; ++i) { double offsetX = radiusS * cos(theta); double offsetY = radiusS * sin(theta); double pointX = centerS.GetX() + offsetX; double pointY = centerS.GetY() + offsetY; chain.push_back(ScenePoint2D(pointX, pointY)); theta += angleIncr; } } double NormalizeAngle(double angle) { double retAngle = angle; while (retAngle < -1.0 * g_pi) retAngle += 2 * g_pi; while (retAngle >= g_pi) retAngle -= 2 * g_pi; return retAngle; } double MeasureAngle(const ScenePoint2D& p1, const ScenePoint2D& c, const ScenePoint2D& p2) { double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX()); double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX()); double delta = p2cAngle - p1cAngle; return NormalizeAngle(delta); } #if 0 void AddEllipse(PolylineSceneLayer::Chain & chain, const Scene2D & scene, const ScenePoint2D & centerS, const double& halfHAxis, const double& halfVAxis) { chain.clear(); chain.reserve(4); ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform()); //TODO: take DPI into account double handleLX = centerC.GetX() - sideLength / 2; double handleTY = centerC.GetY() - sideLength / 2; double handleRX = centerC.GetX() + sideLength / 2; double handleBY = centerC.GetY() + sideLength / 2; ScenePoint2D LTC(handleLX, handleTY); ScenePoint2D RTC(handleRX, handleTY); ScenePoint2D RBC(handleRX, handleBY); ScenePoint2D LBC(handleLX, handleBY); ScenePoint2D startLT = LTC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startRT = RTC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startRB = RBC.Apply(scene.GetCanvasToSceneTransform()); ScenePoint2D startLB = LBC.Apply(scene.GetCanvasToSceneTransform()); chain.push_back(startLT); chain.push_back(startRT); chain.push_back(startRB); chain.push_back(startLB); } #endif #if ORTHANC_STONE_ENABLE_OUTLINED_TEXT == 1 /** This utility function assumes that the layer holder contains 5 text layers and will use the first four ones for the text background and the fifth one for the actual text */ void SetTextLayerOutlineProperties( Scene2D& scene , boost::shared_ptr<LayerHolder> layerHolder , const char* text , ScenePoint2D p , int startingLayerIndex) { double xoffsets[5] = { 2, 0, -2, 0, 0 }; double yoffsets[5] = { 0, -2, 0, 2, 0 }; // get the scaling factor const double pixelToScene = scene.GetCanvasToSceneTransform().ComputeZoom(); for (int i = startingLayerIndex; i < startingLayerIndex + 5; ++i) { TextSceneLayer* textLayer = layerHolder->GetTextLayer(i); if (textLayer != NULL) { textLayer->SetText(text); if (i == startingLayerIndex + 4) { textLayer->SetColor(TEXT_COLOR_RED, TEXT_COLOR_GREEN, TEXT_COLOR_BLUE); } else { textLayer->SetColor(TEXT_OUTLINE_COLOR_RED, TEXT_OUTLINE_COLOR_GREEN, TEXT_OUTLINE_COLOR_BLUE); } ScenePoint2D textAnchor; int offIndex = i - startingLayerIndex; ORTHANC_ASSERT(offIndex >= 0 && offIndex < 5); textLayer->SetPosition( p.GetX() + xoffsets[offIndex] * pixelToScene, p.GetY() + yoffsets[offIndex] * pixelToScene); } } } #else void SetTextLayerProperties( Scene2D& scene , boost::shared_ptr<LayerHolder> layerHolder , const char* text , ScenePoint2D p , int layerIndex) { TextSceneLayer* textLayer = layerHolder->GetTextLayer(layerIndex); if (textLayer != NULL) { textLayer->SetText(text); textLayer->SetColor(TEXT_COLOR_RED, TEXT_COLOR_GREEN, TEXT_COLOR_BLUE); ScenePoint2D textAnchor; textLayer->SetPosition(p.GetX(), p.GetY()); } } #endif std::ostream& operator<<(std::ostream& os, const ScenePoint2D& p) { os << "x = " << p.GetX() << " , y = " << p.GetY(); return os; } }