請問如何在圖形上加X、Y座標軸線呢?? |
尚未結案
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Vincent2424
一般會員 發表:57 回覆:40 積分:19 註冊:2004-12-15 發送簡訊給我 |
請問各位,我該如何在圖上加入X、Y座標軸線呢??
而且在座標軸上並標示刻度...
程式如下: void __fastcall TForm1::ComboBox1Change(TObject *Sender)
{ //Draw Background
PaintBox1->Canvas->Brush->Color = Color;
PaintBox1->Canvas->FillRect(PaintBox1->ClientRect);
PaintBox1->Canvas->Pen->Color = clRed; if (ComboBox1->Text == "矩形")
PaintBox1->Canvas->Rectangle(10, 10, 300, 100);
else if (ComboBox1->Text == "圓形")
PaintBox1->Canvas->Ellipse(10, 10, 100, 100);
else if (ComboBox1->Text == "Arc")
PaintBox1->Canvas->Arc(10, 10, 30, 30, 40, 40, 50, 50);
else if (ComboBox1->Text == "正方形")
PaintBox1->Canvas->Rectangle(10, 10, 200, 200);
else if (ComboBox1->Text == "Line")
{
//Upper surface
PaintBox1->Canvas->MoveTo(0,75);
PaintBox1->Canvas->LineTo(3.125,68.9);
PaintBox1->Canvas->LineTo(6.25,66.525);
PaintBox1->Canvas->LineTo(12.5,63.175);
PaintBox1->Canvas->LineTo(18.75,60.6);
PaintBox1->Canvas->LineTo(25 ,58.525);
PaintBox1->Canvas->LineTo(37.5,55.275);
PaintBox1->Canvas->LineTo(50 ,53);
PaintBox1->Canvas->LineTo(62.5,51.475);
PaintBox1->Canvas->LineTo(75 ,50.6);
}
} 圖形:
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stellos
中階會員 發表:24 回覆:84 積分:51 註冊:2004-06-08 發送簡訊給我 |
可以用兩個PaintBox阿
你的PaintBox1放在PaintBox2之上
PaintBox2->Top=0;
PaintBox2->Left=0;
PaintBox1->Top=0;
PaintBox1->Left=30; //為了要畫Y座標軸
PaintBox2->Height=PaintBox1->Height 30 //為了要畫X座標軸 //畫了兩條線了
PaintBox2->Canvas->MoveTo(28,0);
PaintBox2->Canvas->LineTo(28,PaintBox1->Height);
PaintBox2->Canvas->MoveTo(28,PaintBox2->Height-28);
PaintBox2->Canvas->LineTo(PaintBox1->Width,PaintBox2->Height-28); 畫刻度只要用迴圈在上面兩條線上畫就行啦
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Vincent2424
一般會員 發表:57 回覆:40 積分:19 註冊:2004-12-15 發送簡訊給我 |
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