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=60a08f3ce75374fc815384616d114df7 6 REG_FIDDLE(Point_Normalize, 256, 256, false, 0) { 7 void draw(SkCanvas* canvas) { 8 SkPaint paint; 9 paint.setAntiAlias(true); 10 const SkPoint lines[][2] = { {{ 30, 110 }, { 190, 30 }}, 11 {{ 30, 220 }, { 120, 140 }}}; 12 for (auto line : lines) { 13 canvas->drawLine(line[0], line[1], paint); 14 SkVector vector = line[1] - line[0]; 15 SkScalar priorLength = SkPoint::Normalize(&vector); 16 SkVector rotate90 = { -vector.fY, vector.fX }; 17 rotate90 *= 10.f; 18 canvas->drawLine(line[0] - rotate90, line[0] + rotate90, paint); 19 canvas->drawLine(line[1] - rotate90, line[1] + rotate90, paint); 20 SkString length("length = "); 21 length.appendScalar(priorLength); 22 canvas->drawString(length, line[0].fX + 25, line[0].fY - 4, paint); 23 } 24 } 25 } // END FIDDLE 26 #endif // Disabled until updated to use current API. 27