翻譯|使用教程|編輯:李顯亮|2021-01-12 10:19:42.217|閱讀 181 次
概述:本系列教程整理了VectorDraw Developer Framework(VDF)最常見問題,教程整理的很齊全,非常適合新手學習。本文將會介紹如何檢查2個影線之間的剪輯區(qū)域是否在內部。
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相關鏈接:
VectorDraw Developer Framework(VDF)是一個用于應用程序可視化的圖形引擎庫。有了VDF提供的功能,您可以輕松地創(chuàng)建、編輯、管理、輸出、輸入和打印2D和3D圖形文件。該庫還支持許多矢量和柵格輸入和輸出格式,包括本地PDF和SVG導出。
點擊下載VectorDraw Developer Framework
問:如果一個艙口位于另一個艙口內,則如何測試兩個艙口之間的剪輯區(qū)域?
答:嘗試以空格式添加兩個按鈕和一個vdFramed控件,然后嘗試以下代碼:
using VectorDraw.Professional.vdObjects;
using VectorDraw.Geometry;
using VectorDraw.Generics;
using VectorDraw.Professional.vdPrimaries;
namespace WindowsFormsApplication1
{
public partial class Form2 : Form
{
vdDocument doc;
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
doc = vdFramedControl1.BaseControl.ActiveDocument;
}
private void button1_Click(object sender, EventArgs e)
{
doc.Open(@"C:\test\hatches.vdcl");
doc.CommandAction.Zoom("E", 0, 0);
}
private void button2_Click(object sender, EventArgs e)
{
//Testing the method
//NOTE: doc is a predefined vdDocument object
IvdHatchFigure hfig1, hfig2;
gPoint pt;
vdFigure fig;
doc.Prompt("Pick hatch 1");
doc.ActionUtility.getUserEntity(out fig, out pt);
doc.Prompt(null);
hfig1 = fig as IvdHatchFigure;
if (hfig1 == null) return;
doc.Prompt("Pick hatch 2");
doc.ActionUtility.getUserEntity(out fig, out pt);
doc.Prompt(null);
hfig2 = fig as IvdHatchFigure;
if (hfig2 == null) return;
// -1 error hfig1 and or hfig2 are invalid hatches
// 0 == hfig2 is Completely inside hfig1
// 1 == hfig2 is Completely off the hfig1
// 2 == hfig1 Clip somehow hfig2
int ret = TestClipHatch(hfig1, hfig2);
switch (ret)
{
case -1:
doc.Prompt("\r\n error hfig1 and or hfig2 are invalid hatches"); doc.Prompt(null);
break;
case 0:
doc.Prompt("\r\n hfig2 is completely inside hfig1"); doc.Prompt(null);
break;
case 1:
doc.Prompt("\r\n hfig2 is completely off hfig1"); doc.Prompt(null);
break;
case 2:
doc.Prompt("\r\n hfig2 is partial inside hfig1"); doc.Prompt(null);
break;
}
}
// Test the clip area between 2 hatches and returns one of the following
// -1 error hfig1 and or hfig2 are invalid hatches
// 0 == hfig2 is Completely inside hfig1
// 1 == hfig2 is Completely off the hfig1
// 2 == hfig1 Clip somehow hfig2
int TestClipHatch(IvdHatchFigure hfig1, IvdHatchFigure hfig2)
{
vdHatchProperties h1 = hfig1.HatchProperties;
vdHatchProperties h2 = hfig2.HatchProperties;
if (h1 == null || h2 == null) return -1;
VectorDraw.Generics.vdArrayarray1 = h1.GetFilledPolygons(0, 0);
if (array1 == null) return -1;
VectorDraw.Generics.vdArrayarray2 = h2.GetFilledPolygons(0, 0);
if (array2 == null) return -1;
vdArrayclips = new vdArray();
vdArray opers = new vdArray(new VectorDraw.Geometry.GpcWrapper.ClippingOperation[]
{ VectorDraw.Geometry.GpcWrapper.ClippingOperation.Intersection, VectorDraw.Geometry.GpcWrapper.ClippingOperation.Intersection });
for (int i = 0; i < array1.Count; i++) { for (int k = 0; k < array2.Count; k++) { vdArrayarr = new vdArray(new gPoints[] { array1[i], array2[k] });
vdArraypts = PolygonClipper.getCountours(PolygonClipper.getCountoursPolygonObject(arr, opers), arr);
if (pts != null && pts.Count > 0)
clips.AddRange(pts);
}
}
if (clips == null || clips.Count == 0) return 1;
VectorDraw.Generics.vdArrayarray = new vdArray();
array.AddRange(array2);
array.AddRange(clips);
opers = new vdArray();
for (int i = 0; i < array.Count; i++) opers.AddItem(VectorDraw.Geometry.GpcWrapper.ClippingOperation.XOr); vdArrayretpts = PolygonClipper.getCountours(PolygonClipper.getCountoursPolygonObject(array, opers), array);
double area = 0.0;
if (retpts != null && retpts.Count > 0)
{
foreach (gPoints item in retpts)
{
area += Math.Abs(item.Area());
}
}
if (Globals.AreEqual(area, 0.0, Globals.DefaultAreaEquality)) return 0;
return 2;
}
}
}
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