CAD绘制固定批注（网页版）

js中实现代码说明：

自定义实体绘制函数

function ExplodeFun(pCustomEntity, pWorldDraw, txt) {

var sGuid = pCustomEntity.Guid;

if (sGuid == "TestMxCustomEntity") {

if (!pCustomEntity.IsHave("First"))

return;

var stp = pCustomEntity.GetPoint("First");

var ept = pCustomEntity.GetPoint("BasePoint");

var dimpt = pCustomEntity.GetPoint("DimPoint");

var txt = pCustomEntity.GetString("Text");

var textH = pCustomEntity.GetDouble("TextHeight");

var edgeNum = pCustomEntity.GetLong("EdgeNumber");

var shapRadius = pCustomEntity.GetDouble("ShapRadius");

var isCircle = pCustomEntity.GetLong("isCircle");

// 创建一个批注对象.

var comment = mxOcx.NewEntity("IMxDrawComment");

//标注文字

comment.Text = txt;

//标注文字高度

comment.TextHeight = textH;

//标注位置提示多边形的边数. 小于2不绘制，=2绘制圆，大于2绘制多边形

comment.EdgeNumber = edgeNum;

//标注位置提示多边形的半径

comment.ShapRadius = shapRadius;

//标注基点

comment.basePoint = ept;

//标注位置点

comment.Position = dimpt;

// 设置文字样式

pWorldDraw.TextStyle = "MyCommentFont";

// 动态绘制.

pWorldDraw.DrawEntity(comment);

if (isCircle) {

var dR = stp.DistanceTo(ept) * 0.5;

var vec = stp.SumVector(ept);

vec.Mult(0.5);

ept.Add(vec);

//绘制一个圆

//参数一为圆的中心X值，参数二为圆的中心Y值,

//参数三为半径

pWorldDraw.DrawCircle(ept.x, ept.y, dR);

}

// 绘制矩形框.

else {

//绘制一个直线

//参数一直线的开始点x坐标，参数二直线的开始点y坐标，参数三直线的结束点x坐标，参数四直线的结束点y坐标

pWorldDraw.DrawLine(stp.x, stp.y, stp.x, ept.y);

pWorldDraw.DrawLine(stp.x, ept.y, ept.x, ept.y);

pWorldDraw.DrawLine(ept.x, ept.y, ept.x, stp.y);

pWorldDraw.DrawLine(ept.x, stp.y, stp.x, stp.y);

}

mxOcx.SetEventRet(1);

}

返回自定义实体夹点

function GetGripPointsFun(pCustomEntity) {

var sGuid = pCustomEntity.Guid;

if (sGuid == "TestMxCustomEntity") {

if (!pCustomEntity.IsHave("First"))

return;

var stp = pCustomEntity.GetPoint("First");

var ept = pCustomEntity.GetPoint("BasePoint");

var dimpt = pCustomEntity.GetPoint("DimPoint");

var ret = mxOcx.NewResbuf();

ret.AddPoint(stp);

ret.AddPoint(ept);

ret.AddPoint(dimpt);

mxOcx.SetEventRetEx(ret);

}

移动自定义实体夹点

function MoveGripPointsFun(pCustomEntity, lGridIndex, dOffsetX, dOffsetY) {

var sGuid = pCustomEntity.Guid;

if (sGuid == "TestMxCustomEntity") {

if (!pCustomEntity.IsHave("First"))

return;

var stp = pCustomEntity.GetPoint("First");

var ept = pCustomEntity.GetPoint("BasePoint");

var dimpt = pCustomEntity.GetPoint("DimPoint");

if (lGridIndex == 0) {

stp.x = stp.x + dOffsetX;

stp.y = stp.y + dOffsetY;

pCustomEntity.SetPoint("First", stp);

}

else if (lGridIndex == 1)

{

ept.x = ept.x + dOffsetX;

ept.y = ept.y + dOffsetY;

pCustomEntity.SetPoint("BasePoint", ept);

}

else

{

dimpt.x = dimpt.x + dOffsetX;

dimpt.y = dimpt.y + dOffsetY;

pCustomEntity.SetPoint("DimPoint", dimpt);

}

mxOcx.SetEventRet(1);

}

固定参数绘批注

function DoCommentFix() {

var comment = mxOcx.NewEntity("IMxDrawComment");

comment.Text = "固定参数绘批注";

comment.TextHeight = 10;

var basepos = mxOcx.NewPoint();

basepos.x = 0;

basepos.y = 10;

var pos = mxOcx.NewPoint();

pos.x = 20;

pos.y = 30;

//基点

comment.BasePoint = basepos;

//位置

comment.Position = pos;

var comobj = mxOcx.ObjectIdToObject( mxOcx.DrawEntity(comment) );

comobj.TextStyle = "MyCommentFont";

mxOcx.ZoomAll();

}

效果展示：

通过点击固定参数绘批注按钮，触发DoCommentFix()事件，CAD控件视区将显示在js中设置好的固定参数批注。如下图所示：

CAD绘制固定批注（网页版）

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