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< > BotCompany Repo | #1035464 // LineThroughPoint

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (8126L/45K).

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// line that goes through x, y at specified angle
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// angle is in radians
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srecord LineThroughPoint(double x, double y, double angle) is G2Drawable {
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  *(IDoublePt p, double *angle) {
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    x = p.x_double();
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    y = p.y_double();
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  }
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  DoublePt pointOnLine(double distance) {
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    ret doublePt(
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      x+sin(angle)*distance,
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      y+cos(angle)*distance);
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  }
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  // uses color selected in g
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  public void drawOn(Graphics2D g) {
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    int distance = 200;
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    DoublePt p1 = pointOnLine(-distance);
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    DoublePt p2 = pointOnLine(distance);
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    g.drawLine(
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      iround(p1.x_double()), iround(p1.y_double()),
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      iround(p2.x_double()), iround(p2.y_double()));
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  }
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}

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Snippet ID: #1035464
Snippet name: LineThroughPoint
Eternal ID of this version: #1035464/4
Text MD5: fbcb7889339e98f5b52b823e691a4161
Transpilation MD5: caa4ca8000c40c625120a03e63cb43af
Author: stefan
Category: javax / math
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-05-21 18:41:52
Source code size: 682 bytes / 24 lines
Pitched / IR pitched: No / No
Views / Downloads: 74 / 123
Version history: 3 change(s)
Referenced in: [show references]