def drawRandomTrianglePoints(svg):
"""draw a random triangle and zoom this to seris"""
W, H = svg.get_size()
cx, cy = W // 2, H // 2
r = 10
if 1:
pts = getRandomProper3Points(min=r, max=W - r)
else:
pts = random_points((3, 2), min=cx - r, max=cx + r)
print(pts)
# drawTrianglePoints(svg,pts[0],pts[1],pts[2])
cx, cy, _ = getCenterPoint(pts[0], pts[1], pts[2])
x = pts.T[0]
y = pts.T[1]
print('cx,cy=', cx, cy)
# zoomPoint = (0,0)
zoomPoint = (cx, cy)
times = 30
for z in np.linspace(0.1, 1.0, times):
zx, zy = zoom_pts_xy_point(x, y, zoomPoint, z)
drawTrianglePointsXY(svg, zx, zy)
def drawAbstractLine(svg):
W, H = svg.get_size()
# cx, cy = W // 2, H // 2
N = 10
# svg.draw(draw_rect(0,0,W,H,color='#808B96')) # background
slope = 1.7
# ptYaxis = getLinePointFromSlope(slope,(20,0))
# print('ptYaxis=',ptYaxis)
pts1 = random_points((N, ), min=0, max=W).reshape((N, 1))
pts1 = np.append(pts1, np.zeros_like(pts1), axis=1)
pts2 = None
for i in pts1:
pt = getLinePointFromSlope(slope, (i[0], i[1]))
pt = np.array(pt).reshape(1, 2)
# print('pt=',pt)
# pts2 = np.append(pts2, pt, axis=1)
pts2 = np.concatenate((pts2, pt), axis=0) if pts2 is not None else pt
# print('pts1=',pts1)
# print('pts2=',pts2)
linePoints = []
widths = []
for pt1, pt2 in zip(pts1, pts2):
linePoints.append((pt1[0], pt1[1], pt2[0], pt2[1]))
widths.append(random.choice([2, 2, 4, 6, 8, 10]))
# print(widths)
drawlinePoints(svg, linePoints, color=None, stroke_widths=widths)
def svg_path7(svg):
W, H = svg.get_size()
# dictStyle = {'stroke-width': "0.4", 'fill': "transparent"}
# dictStyle = {'stroke-width': "0.4", 'fill': "transparent", 'stroke': "green"}
dictStyle = {'stroke-width': "0.4", 'stroke': "green"}
styleList = get_styles(dictStyle)
svg.draw(add_style('path', styleList))
cx, cy = W // 2, H // 2
pts = get_5star(R=12, r=8)
pts = np.hsplit(pts, 2)
x, y = pts[0].ravel(), pts[1].ravel()
ptx, pty = translation_pts_xy(x, y, (cx, cy))
times = 68
pts = random_points((times, 2), 0, W)
for i in range(times):
z = i / times
x, y = zoom_pts_xy_point(ptx, pty, (pts[i][0], pts[i][1]), z)
color = None # random_color_hsv()
draw_points_svg(svg,
x,
y,
stroke=None,
color=color,
fillColor=random_color_hsv(),
close=True)
def drawPointsLineGraphic5(svg):
W, H = svg.get_size()
# cx,cy = W//2,H//2
N = 10
color = 'black'
pts = random_points((N, 2), min=2, max=W - 2)
drawPointsCircle(svg, pts, r=1)
graph = GraphPoints(pts)
# graph.show()
conMatrix = graph.getConnectionMatrix2(KNearst=3)
print('conMatrix=', conMatrix)
# for i,pt in enumerate(pts):
# #print(i,pt, conMatrix[i])
# ptsTriangle=[]
# ptsTriangle.append(pts[i])
# ptsTriangle.append(pts[conMatrix[i][0]])
# ptsTriangle.append(pts[conMatrix[i][1]])
# color = None
# drawPloygon(svg,ptsTriangle,color=color)
linePoints = []
for i in conMatrix:
s, t = i[0], i[1] # start stop point index
if t == -1:
continue
linePoints.append((pts[s][0], pts[s][1], pts[t][0], pts[t][1]))
drawlinePoints(svg, linePoints, color=color)
def drawPointsLineGraphic6(svg):
W, H = svg.get_size()
# cx,cy = W//2,H//2
N = 50
color = 'black'
pts = random_points((N, 2), min=2, max=W - 2)
drawPointsCircle(svg, pts, r=1)
graph = GraphPoints(pts)
# graph.show()
# conMatrix = graph.getAllConnectionMatrix()
conMatrix = graph.getConnectionMatrix2(KNearst=4)
print('conMatrix=', conMatrix)
linePoints = []
for i in conMatrix:
s, t = i[0], i[1] # start stop point index
if t == -1:
continue
conect = (pts[s][0], pts[s][1], pts[t][0], pts[t][1])
if not IsIntersectionWithAlreayLines(conect, linePoints):
linePoints.append(conect)
drawlinePoints(svg, linePoints, color=color)
def drawPointsLineGraphic(svg):
W, H = svg.get_size()
# cx,cy = W//2,H//2
N = 50
color = 'black'
pts = random_points((N, 2), min=2, max=W - 2)
drawPointsCircle(svg, pts, r=1, color='red')
graph = GraphPoints(pts)
# graph.show()
# conMatrix = graph.getConnectionMatrix(K=3,KNearst=4) # style1
conMatrix = graph.getConnectionMatrix2(KNearst=6) # style2
# print('conMatrix=',conMatrix)
linePoints = []
for i in conMatrix:
s, t = i[0], i[1] # start stop point index
if t == -1:
continue
conect = (pts[s][0], pts[s][1], pts[t][0], pts[t][1])
linePoints.append(conect)
drawlinePoints(svg, linePoints, color=color)
def animCircleInflation5(svg):
H, W = svg.get_size()
cx, cy = W // 2, H // 2
N = 20 # total points
r0 = 5
r1 = 60
offset = 10 # margin to border
pts = random_points((N, 2), min=offset, max=W - offset)
color = None # "black"#
rList = np.linspace(1, r1 / 2, 20)
for i in range(N):
begin = str(random.randint(1, 4)) + 's' # str(i)+'s' #'0s'
dur = random.randint(3, 6)
r = random.choice(rList)
id, circle = circleInflation(svg,
pts[i][0],
pts[i][1],
r=r,
color=color,
fromR=r0,
toR=r1,
durS=dur,
begin=begin)
animateDict = {}
animateDict["{{{}}}".format(svg.xlink) + 'href'] = f'#{id}'
animateDict['id'] = 'ani_' + id + '_' + rand_str(2)
animateDict['attributeName'] = 'stroke-width'
animateDict['values'] = '0;2;4;2;1;0'
animateDict['dur'] = '5s' # str(random.randint(0,durS)) #'5'
animateDict['begin'] = begin # '0s'
animateDict["repeatCount"] = "indefinite" # "5"
addNodeAnitmation(svg, circle, animateDict)
def drawPointsLineGraphic3(svg):
W, H = svg.get_size()
# cx,cy = W//2,H//2
N = 100
color1 = 'green'
# color2 = 'yellow'
pts = random_points((N, 2), min=2, max=W - 2)
pts1 = pts[: N // 2]
pts2 = pts[N // 2:]
drawPointsCircle(svg, pts1, r=1, color=color1)
drawPointsCircle(svg, pts2, r=1, color=color1)
linePoints = [(pt1[0], pt1[1], pt2[0], pt2[1]) for pt1, pt2 in zip(pts1, pts2)]
drawlinePoints(svg, linePoints, color=color1, stroke_width=0.2)
drawInterPointLines(svg, linePoints, r=1, color=color1)
def animCircleInflation2(svg):
H, W = svg.get_size()
N = 30 # total points
offset = 10 # margin to border
pts = random_points((N, 2), min=offset, max=W - offset)
# print(pts)
color = None # "black" #None
for pt in pts:
r = random.randint(1, 6)
circleInflation(svg,
pt[0],
pt[1],
r=r,
color=color,
fromR=r,
toR=r * 5,
durS=3)
def svg_path4(svg):
W, H = svg.get_size()
# svg.set_background('#eeeeee')
cx, cy = W // 2, H // 2
pts = get_5star(R=20, r=10)
pts = np.hsplit(pts, 2)
x, y = pts[0].ravel(), pts[1].ravel()
# draw one 5-pointed star
# ptx, pty = translation_pts_xy(x, y, (cx, cy))
# draw_points_svg(svg, ptx, pty, color='green', close=True)
# draw random 5-pointed stars
N = 30 # total points
margin = 10 # margin to border
pts = random_points((N, 2), min=10, max=W - margin)
for pt in pts:
ptx, pty = translation_pts_xy(x, y, (pt[0], pt[1]))
draw_points_svg(svg, ptx, pty, color=random_color_hsv(), close=True)
def drawPointsLineGraphic9(svg):
W, H = svg.get_size()
# cx, cy = W // 2, H // 2
N = 50
pts = random_points((N, 2), min=2, max=W - 2)
drawPointsCircle(svg, pts, r=2, color='black')
drawPointsCircle(svg, pts, r=1.5, color='red')
# print(pts, len(pts), type(pts))
ptsNum = list(itertools.combinations(range(len(pts)), 2))
# print(ptsNum)
linePts = np.array([]).reshape(0, 2)
for i, j in ptsNum:
# print(i,j, pts[i], pts[j])
# linePts.append([pts[i], pts[j]])
linePts = np.vstack((linePts, pts[i]))
linePts = np.vstack((linePts, pts[j]))
# print('linePts=', linePts)
drawlinePointsContinus(svg, linePts, stroke_width=0.2, color='black')
def drawPointsLineGraphic2(svg):
W, H = svg.get_size()
# cx,cy = W//2,H//2
N = 200
color1 = 'green'
color2 = '#C70039'
# svg.draw(draw_rect(0,0,W,H,color='#808B96')) #background
pts = random_points((N, 2), min=2, max=W - 2)
pts1 = pts[:N // 2]
pts2 = pts[N // 2:]
drawPointsCircle(svg, pts1, color=color1)
drawPointsCircle(svg, pts2, color=color2)
linePoints = [(0, 0, i[0], i[1]) for i in pts1]
drawlinePoints(svg, linePoints, color=color1, stroke_width=0.2)
linePoints = [(i[0], i[1], W, H) for i in pts2]
drawlinePoints(svg, linePoints, color=color2, stroke_width=0.2)
def test_geo_transformation():
x = np.array([1, 2, 5])
y = np.array([3, 4, 6])
print(x.shape)
# new_x, new_y = translation_pts_xy(x, y, (1, 2))
# translation_pts_xy(x,y,(-1.5,-3.5))
N = 10
pts = random_points((N, 2), min=1, max=10)
print(pts, pts.shape)
x, y = split_points(pts)
# print('x, x.shape=', x, x.shape)
# new_x, new_y = identity_trans(x, y)
# new_x, new_y = translation_pts_xy(x, y, (1, -2))
# new_x, new_y = translation_pts(pts, (1, -2))
# new_x, new_y = rotation_pts_xy(x, y, 0)
# new_x, new_y = zoom_pts_xy(x, y, 1.1)
# new_x, new_y = shear_points(pts, 1)
new_x, new_y = reflection_points(pts, 1)
print('new_x =', new_x)
print('new_y =', new_y)