绘制梯段,首先定义一个绘制梯段的函数,然后,在插件下增加一个”绘制“命令,已激活插件。
UI.menu("PlugIns").add_item("Draw stairs") {
UI.messagebox("I'm about to draw stairs!")
draw_stairs
}
def draw_stairs
stairs = 10
rise = 8
run = 12
width = 100
thickness = 3
model = Sketchup.active_model
entities = model.entities
for step in 1..stairs
x1 = 0
x2 = width
y1 = run * step
y2 = run * (step + 1)
z = rise * step
pt1 = [x1, y1, z]
pt2 = [x2, y1, z]
pt3 = [x2, y2, z]
pt4 = [x1, y2, z]
new_face = entities.add_face pt1, pt2, pt3, pt4
new_face.pushpull thickness
end
end
首先定义四个变量,阶梯数,阶梯间隔,踏步宽度,踏步长度,添加面,然后推拉,完成一个踏步的绘制,,利用一个for循环,来完成全部踏步的绘制。
原来ruby中的for循环是这个样子的,用到add_face和pushpull方法,以及如何添加新的菜单命令。