概要

scatter(domain, nPoints, distributionType) { operations }

scatter(domain, nPoints,gaussian, scatterMean, scatterStddev) { operations } 

引數

domain (selstr)：指定隨機點產生的位置，有三個選項：surface、volume、scope。
nPoints (float)：指定點的數量
distributionType (selstr)：指定點分佈的型別，有兩個選項：uniform、gaussian
scatterMean (selstr)：可選的引數，指定隨機點群的中心相對於當前的scope的位置，有七個選項center、front、back、left、right、top、bottom，預設為center

scatterStddev (float)：可選的引數，指定標準差，預設值是0.16. 

注意

只有在幾何體是閉合的形狀時，domain才能使用volume，如果不是閉合的，則會採用surface

產生的每一個點的scope的尺寸為0

產生的每一個點只包含一個節點，可以使用替換函式i()來插入模型

示例

一、在表面生成隨機點，型別為uniform

attr height   =10
Lot-->
	extrude(height)
	scatter(surface,1000,uniform) {A.}

二、在體內生成隨機點，型別為uniform

attr height   =10
Lot-->
	extrude(height)
	scatter(volume,1000,uniform) {A.}
 

三、在表面生成隨機點，型別為gaussian

attr height   =10
Lot-->
	extrude(height)
	scatter(surface,1000,gaussian) {A.}

四、在體內生成隨機點，型別為gaussian

attr height   =10
Lot-->
	extrude(height)
	scatter(volume,1000,gaussian) {A.}

五、在scope生成隨機點，型別為uniform

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,1000,<span style="font-size:14px;">uniform</span>) {A.}
 

六、在scope生成隨機點，型別為gaussian

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,1000,gaussian) {A.}

七、在scope生成隨機點，型別為uniform,設定scatterMean引數

scatterMean為front

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,front,0.9) {A.}

\

scatterMean為left

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,left,0.9) {A.}

scatterMean為bottom

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,bottom,0.9) {A.}

scatterMean為right

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,right,0.9) {A.}

scatterMean為back

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,back,0.9) {A.}

scatterMean為top

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,top,0.9) {A.}

八、設定標準差

標準差越大，點越分散

設定標準差為0.2

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,top,0.2) {A.}

設定標準差為2

attr height   =10
Lot-->
	extrude(height)
	scatter(scope,20,gaussian,top,2) {A.}