def job3():
'''以该多边形的外包矩形的左下角为原点，实现沿着x方向的错切变换
'''
try:
acad.doc.SelectionSets.Item('SS1').Delete()
except Exception:
print('Delete selection failed')
selection = acad.doc.SelectionSets.Add('SS1')
acad.prompt('选择一条多义线')
selection.SelectOnScreen(aShort([0]), ['lwpolyline'])
if selection.Count == 1:
entity = selection.Item(0)
else:
print("选择的多义线多于一条")
return
coor = entity.Coordinates
# minPnt=np.float_([0,0,0])
# maxPnt=np.float_([0,0])
# pBox=entity.GetBoundingBox
# minx=pBox()[0][0]
# miny=pBox()[0][1]
# maxx=pBox()[1][0]
# maxy=pBox()[1][1]
retval = GetBoundingBox(entity)
mat = multi(move(-retval[0], -retval[1]), shear(1),
move(retval[0], retval[1]))
newcoor = transform(mat, coor)
entity.Coordinates = aDouble(newcoor)
entity.Color = ACAD.acYellow
acad.doc.Regen(1)
def job2():
'''选取最长的对角线，以对角线的某一点为原点，沿该对角线伸长1.5倍
绘制的线用蓝色表示
'''
try:
acad.doc.SelectionSets.Item('SS1').Delete()
except Exception:
print('Delete selection failed')
selection = acad.doc.SelectionSets.Add('SS1')
acad.prompt('选择一条多义线')
selection.SelectOnScreen(aShort([0]), ['lwpolyline'])
if selection.Count == 1:
entity = selection.Item(0)
else:
print("选择的多义线多于一条")
return
coor = entity.Coordinates #tuple77
vectorcoor = longestDiagonalLine(coor)
basePnt = vectorcoor[0:2]
endPnt = vectorcoor[2:4]
angle = acad.doc.Utility.AngleFromXAxis(APoint(*basePnt), APoint(*endPnt))
negbasePnt = [-x for x in basePnt]
mat1 = multi(move(*negbasePnt), rotate(-angle))
mat2 = scale(1.5)
mat3 = multi(rotate(angle), move(*basePnt))
mat = multi(mat1, mat2, mat3)
newcoor = transform(mat, coor)
entity.Coordinates = aDouble(newcoor)
entity.Color = ACAD.acBlue
acad.doc.Regen(1)
def demo5(): #选择集
try:
acad.doc.SelectionSets.Item('SS4').Delete()
except Exception:
print('未删除成功')
sstext = acad.doc.SelectionSets.Add('SS4')
filtertype = aShort([0])
filterdata = ('circle', )
sstext.SelectOnScreen(filtertype, filterdata)
def tin():
"""
从文件中读取点，生成tin
"""
acad = Autocad()
ptlist = []
num = acad.doc.Utility.GetInteger('请选择从：\n1.从文件中读取点 2.现有点（当前图层）生成三角网')
if num == 1:
fname = tkFileDialog.askopenfilename(title=u"选择文件",
filetypes=[("text file", "*.txt"),
("all", "*.*")],
initialdir=r"D:\学习\计算机图形学")
f = open(fname)
lines = f.readlines()
f.close()
poLayer = acad.doc.Layers.Add('point')
acad.doc.ActiveLayer = poLayer
for i in range(1, len(lines), 2):
t = lines[i].split(',')
ap = APoint(float(t[1]), float(t[2]), float(t[3]))
ptlist.append(ap)
acad.model.AddPoint(ap)
elif num == 2:
try:
acad.doc.SelectionSets.Item("SS1").Delete()
except Exception:
print('Delete selection failed')
ss = acad.doc.SelectionSets.Add('SS1')
ss.Select(ACAD.acSelectionSetAll, aShort([0, 8]), ['POINT', 'point'])
for i in range(ss.Count):
c = ss.Item(i).Coordinates
ptlist.append(APoint(ss.Item(i).Coordinates))
ptlist = PointSet(ptlist)
minpo, maxpo = ptlist.GetBoundingBox()
acad.app.ZoomWindow(minpo, maxpo)
lineLayer = acad.doc.Layers.Add('line')
lineLayer.Color = ACAD.acRed
acad.doc.ActiveLayer = lineLayer
points = np.array(ptlist)
points = points[:, 0:2]
tri = Delaunay(points)
for simplex in tri.simplices:
aplist = [
APoint(ptlist[simplex[0]]),
APoint(ptlist[simplex[1]]),
APoint(ptlist[simplex[2]])
]
lwp = acad.model.AddLightWeightPolyline(toLightWeightPolyline(aplist))
lwp.Closed = True
def demo12(): #选择0层圆并将颜色改为红色
try:
acad.doc.SelectionSets.Item('SS5').Delete()
except Exception:
print('ss5不存在')
ss = acad.doc.SelectionSets.Add('SS5')
filtertype = aShort([0, 8])
filterdata = ('Circle', '0')
ss.SelectOnScreen(filtertype, filterdata)
newcolor = acad.app.GetInterfaceObject('AutoCAD.AcCmColor.20')
#.20 version independent
newcolor.SetRGB(255, 0, 0)
#Colors are identified by an AcCmColor object.
# This object can hold an RGB value, an ACI number
# (an integer from 1 to 255), or a named color.
# Using an RGB value, you can choose from millions of colors.
for entity in ss:
entity.TrueColor = newcolor
ss.Delete()
def job1():
'''绕中心点逆时针旋转45度，绘制的线用红色表示
'''
try:
acad.doc.SelectionSets.Item('SS1').Delete()
except Exception:
print('Delete selection failed')
selection = acad.doc.SelectionSets.Add('SS1')
acad.prompt('选择一条多义线')
selection.SelectOnScreen(aShort([0]), ['lwpolyline'])
if selection.Count == 1:
entity = selection.Item(0)
else:
print("选择的多义线多于一条")
return
coor = entity.Coordinates #tuple
newcoor = transform(rotate(radians(45), *center(coor)), coor)
entity.Coordinates = aDouble(newcoor)
entity.Color = ACAD.acRed
acad.doc.Regen(1)
def job5():
try:
acad.doc.SelectionSets.Item('SS1').Delete()
except Exception:
print('Delete selection failed')
selection = acad.doc.SelectionSets.Add('SS1')
acad.prompt('选择一条多义线')
selection.SelectOnScreen(aShort([0]), ['lwpolyline'])
if selection.Count == 1:
entity = selection.Item(0)
else:
print('选择的多义线多于一条')
return
coor = entity.Coordinates
ptlist = Polygon(coor)
leftup = ptlist.Topleft
index0 = ptlist.GetTopLeftIndex()
retVal = ptlist.GetDirectionArea()
oriention = retVal[0]
area = abs(retVal[1])
edge = ptlist.GetAverageEdgeLength()
edgecenter = ptlist.GetEdgeCenter()
height = edge / 20 #字高为平均边长的1/20
num = 1
if oriention:
for i in range(index0, index0 - len(ptlist), -1):
acad.model.AddText('J%d' % num, ptlist[i], height)
acad.model.AddText('L%d' % num, edgecenter[i], height)
num += 1
else:
for i in range(index0 - len(ptlist), index0, 1):
acad.model.AddText('J%d' % num, ptlist[i], height)
acad.model.AddText('L%d' % num, edgecenter[i], height)
num += 1
area = round(area, 2)
#point=GetMiddle(ptlist)
point = ptlist.Center
acad.model.AddText('面积=%s' % area, point, height)