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40 lines
944 B
Go
40 lines
944 B
Go
// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 13/12/2010 by Laurent Le Goff
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package drawing
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// Transformer apply the Matrix transformation tr
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type Transformer struct {
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Tr Matrix
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Flattener Flattener
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}
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// MoveTo implements the path builder interface.
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func (t Transformer) MoveTo(x, y float64) {
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u := x*t.Tr[0] + y*t.Tr[2] + t.Tr[4]
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v := x*t.Tr[1] + y*t.Tr[3] + t.Tr[5]
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t.Flattener.MoveTo(u, v)
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}
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// LineTo implements the path builder interface.
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func (t Transformer) LineTo(x, y float64) {
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u := x*t.Tr[0] + y*t.Tr[2] + t.Tr[4]
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v := x*t.Tr[1] + y*t.Tr[3] + t.Tr[5]
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t.Flattener.LineTo(u, v)
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}
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// LineJoin implements the path builder interface.
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func (t Transformer) LineJoin() {
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t.Flattener.LineJoin()
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}
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// Close implements the path builder interface.
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func (t Transformer) Close() {
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t.Flattener.Close()
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}
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// End implements the path builder interface.
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func (t Transformer) End() {
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t.Flattener.End()
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}
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