comparison: src/ui/canvas.cpp
src/ui/canvas.cpp
- changeset 164
- 8305e2f968fb
- parent 157
- 869fe95c4e5e
- child 165
- f6eab2bd46c2
equal
deleted
inserted
replaced
| 163:36ea1a8aee33 | 164:8305e2f968fb |
|---|---|
| 226 } | 226 } |
| 227 } | 227 } |
| 228 } | 228 } |
| 229 | 229 |
| 230 /** | 230 /** |
| 231 * @brief Draws a polyline to where the specified vector of 3D points would appear on the screen. | |
| 232 * @param painter Painter to use to draw with | |
| 233 * @param points 3D points to render | |
| 234 */ | |
| 235 void Canvas::drawWorldPolyline(QPainter *painter, const std::vector<glm::vec3> &points) | |
| 236 { | |
| 237 painter->drawPolyline(QPolygonF{this->convertWorldPointsToScreenPoints(points)}); | |
| 238 } | |
| 239 | |
| 240 /** | |
| 231 * @brief Draws a polygon to where the specified vector of 3D points would appear on the screen. | 241 * @brief Draws a polygon to where the specified vector of 3D points would appear on the screen. |
| 232 * @param painter Painter to use to draw with | 242 * @param painter Painter to use to draw with |
| 233 * @param points 3D points to render | 243 * @param points 3D points to render |
| 234 */ | 244 */ |
| 235 void Canvas::drawWorldPolygon(QPainter* painter, const std::vector<glm::vec3> &points) | 245 void Canvas::drawWorldPolygon(QPainter* painter, const std::vector<glm::vec3> &points) |
| 236 { | 246 { |
| 237 QVector<QPointF> points2d; | 247 painter->drawPolygon(QPolygonF{this->convertWorldPointsToScreenPoints(points)}); |
| 238 points2d.reserve(points.size()); | |
| 239 for (const glm::vec3& point : points) | |
| 240 { | |
| 241 points2d.push_back(this->modelToScreenCoordinates(point)); | |
| 242 } | |
| 243 painter->drawPolygon(QPolygonF{points2d}); | |
| 244 } | 248 } |
| 245 | 249 |
| 246 /** | 250 /** |
| 247 * @brief Gets the current position of the cursor in the model | 251 * @brief Gets the current position of the cursor in the model |
| 248 * @return 3D vector | 252 * @return 3D vector |
| 327 // and the grid is perpendicular to the screen. | 331 // and the grid is perpendicular to the screen. |
| 328 const float dot = glm::dot(glm::normalize(this->gridPlane.normal), glm::normalize(cameraDirection)); | 332 const float dot = glm::dot(glm::normalize(this->gridPlane.normal), glm::normalize(cameraDirection)); |
| 329 return std::abs(dot) < threshold; | 333 return std::abs(dot) < threshold; |
| 330 } | 334 } |
| 331 | 335 |
| 336 QVector<QPointF> Canvas::convertWorldPointsToScreenPoints(const std::vector<glm::vec3> &worldPoints) | |
| 337 { | |
| 338 QVector<QPointF> points2d; | |
| 339 points2d.reserve(worldPoints.size()); | |
| 340 for (const glm::vec3& point : worldPoints) | |
| 341 { | |
| 342 points2d.push_back(this->modelToScreenCoordinates(point)); | |
| 343 } | |
| 344 return points2d; | |
| 345 } | |
| 346 | |
| 332 /** | 347 /** |
| 333 * @brief Clears the selection. | 348 * @brief Clears the selection. |
| 334 */ | 349 */ |
| 335 void Canvas::clearSelection() | 350 void Canvas::clearSelection() |
| 336 { | 351 { |
