Point_distanceToOrigin.cpp 1.1 KB

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  1. #if 0 // Disabled until updated to use current API.
  2. // Copyright 2019 Google LLC.
  3. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
  4. #include "tools/fiddle/examples.h"
  5. // HASH=812cf26d91b1cdcd2c6b9438a8172518
  6. REG_FIDDLE(Point_distanceToOrigin, 256, 192, false, 0) {
  7. void draw(SkCanvas* canvas) {
  8. SkPaint paint;
  9. paint.setAntiAlias(true);
  10. const SkPoint points[] = { { 60, -110 }, { 90, 10 }, { 120, -110 }, { 180, -50 } };
  11. const SkPoint origin = {0, 0};
  12. canvas->translate(30, 140);
  13. for (auto point : points) {
  14. canvas->drawLine(origin, point, paint);
  15. SkAutoCanvasRestore acr(canvas, true);
  16. SkScalar angle = SkScalarATan2((point.fY - origin.fY), point.fX - origin.fX);
  17. canvas->rotate(angle * 180 / SK_ScalarPI, origin.fX, origin.fY);
  18. SkString distance("distance = ");
  19. distance.appendScalar(point.distanceToOrigin());
  20. canvas->drawString(distance, origin.fX + 25, origin.fY - 4, paint);
  21. }
  22. }
  23. } // END FIDDLE
  24. #endif // Disabled until updated to use current API.