23 lines
903 B
C++
23 lines
903 B
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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// HASH=d84fce292d86c7d9ef37ae2d179c03c7
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REG_FIDDLE(Point_normalize_2, 256, 256, false, 0) {
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void draw(SkCanvas* canvas) {
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SkPaint paint;
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paint.setAntiAlias(true);
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const SkPoint lines[][2] = { {{ 30, 110 }, { 190, 30 }},
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{{ 120, 140 }, { 30, 220 }}};
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for (auto line : lines) {
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canvas->drawLine(line[0], line[1], paint);
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SkVector vector = line[1] - line[0];
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if (vector.normalize()) {
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SkVector rotate90 = { -vector.fY, vector.fX };
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rotate90 *= 10.f;
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canvas->drawLine(line[0] - rotate90, line[0] + rotate90, paint);
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canvas->drawLine(line[1] - rotate90, line[1] + rotate90, paint);
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}
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}
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}
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} // END FIDDLE
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