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=496db0131a003162faba7d7f98b30340
6 REG_FIDDLE(Point_DotProduct, 256, 256, false, 0) {
7 void draw(SkCanvas* canvas) {
8     SkPaint paint;
9     paint.setAntiAlias(true);
10     SkVector vectors[][2] = {{{50, 2}, {-14, 20}}, {{0, 50}, {-50, 0}}, {{-20, 25}, {25, -20}},
11                              {{-20, -24}, {-24, -20}}};
12     SkPoint center[] = {{32, 32}, {160, 32}, {32, 160}, {160, 160}};
13     paint.setStrokeWidth(2);
14     for (size_t i = 0; i < 4; ++i) {
15         canvas->drawLine(center[i], center[i] + vectors[i][0], paint);
16         canvas->drawLine(center[i], center[i] + vectors[i][1], paint);
17         SkString str;
18         str.printf("dot = %g", SkPoint::DotProduct(vectors[i][0], vectors[i][1]));
19         canvas->drawString(str, center[i].fX, center[i].fY, paint);
20     }
21 }
22 }  // END FIDDLE
23 #endif  // Disabled until updated to use current API.
24