#if 0 // Disabled until updated to use current API. // Copyright 2019 Google LLC. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. #include "fiddle/examples.h" // HASH=78f3c65fa900610bb52518989b547095 REG_FIDDLE(Path_arcTo_2_b, 256, 128, false, 0) { void draw(SkCanvas* canvas) { SkPaint tangentPaint; tangentPaint.setAntiAlias(true); SkPaint textPaint(tangentPaint); tangentPaint.setStyle(SkPaint::kStroke_Style); tangentPaint.setColor(SK_ColorGRAY); SkPaint arcPaint(tangentPaint); arcPaint.setStrokeWidth(5); arcPaint.setColor(SK_ColorBLUE); SkPath path; SkPoint pts[] = { {156, 20}, {200, 20}, {170, 50} }; SkScalar radius = 50; path.moveTo(pts[0]); path.arcTo(pts[1], pts[2], radius); canvas->drawLine(pts[0], pts[1], tangentPaint); canvas->drawLine(pts[1], pts[2], tangentPaint); SkPoint lastPt; (void) path.getLastPt(&lastPt); SkVector radial = pts[2] - pts[1]; radial.setLength(radius); SkPoint center = { lastPt.fX - radial.fY, lastPt.fY + radial.fX }; canvas->drawLine(lastPt, center, tangentPaint); radial = pts[1] - pts[0]; radial.setLength(radius); SkPoint arcStart = { center.fX + radial.fY, center.fY - radial.fX }; canvas->drawLine(center, arcStart, tangentPaint); canvas->drawPath(path, arcPaint); canvas->drawString("(x0, y0)", pts[0].fX, pts[0].fY - 7, textPaint); canvas->drawString("(x1, y1)", pts[1].fX + 5, pts[1].fY, textPaint); canvas->drawString("(x2, y2)", pts[2].fX, pts[2].fY + 15, textPaint); canvas->drawString("radius", center.fX + 15, center.fY + 25, textPaint); canvas->drawString("radius", center.fX - 5, center.fY - 20, textPaint); } } // END FIDDLE #endif // Disabled until updated to use current API.