38 lines
963 B
Go
38 lines
963 B
Go
// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 21/11/2010 by Laurent Le Goff, Stani Michiels
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// Package line draws vertically spaced lines.
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package line
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import (
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"image/color"
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"gopkg.in/llgcode/draw2d.v1"
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"gopkg.in/llgcode/draw2d.v1/samples"
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)
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// Main draws vertically spaced lines and returns the filename.
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// This should only be used during testing.
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func Main(gc draw2d.GraphicContext, ext string) (string, error) {
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gc.SetFillRule(draw2d.FillRuleWinding)
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gc.Clear()
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// Draw the line
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for x := 5.0; x < 297; x += 10 {
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Draw(gc, x, 0, x, 210)
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}
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gc.ClearRect(100, 75, 197, 135)
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draw2d.Ellipse(gc, 148.5, 105, 35, 25)
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gc.SetFillColor(color.RGBA{0xff, 0xff, 0x44, 0xff})
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gc.FillStroke()
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// Return the output filename
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return samples.Output("line", ext), nil
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}
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// Draw vertically spaced lines
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func Draw(gc draw2d.GraphicContext, x0, y0, x1, y1 float64) {
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// Draw a line
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gc.MoveTo(x0, y0)
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gc.LineTo(x1, y1)
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gc.Stroke()
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}
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