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flipping plot properly; flushing path after pen changes; caching moves

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This commit is contained in:
Adam Mayer 2017-12-15 12:57:02 -05:00
parent 90cfe54a47
commit 12bc945e14
1 changed files with 8 additions and 7 deletions
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15
apple410/plot_to_svg.py
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@ -40,6 +40,9 @@ class Plotter:
d = (v[3]-v[1])/(w[3]-w[1]) d = (v[3]-v[1])/(w[3]-w[1])
e = v[0] - w[0]*a e = v[0] - w[0]*a
f = v[1] - w[1]*d f = v[1] - w[1]*d
# everything needs to flip on the Y axis.
f = H-f
d = -d
sys.stderr.write("GROUP a {} d {} e {} f {}\n".format(a,d,e,f)) sys.stderr.write("GROUP a {} d {} e {} f {}\n".format(a,d,e,f))
self.cur_g.matrix(a,0,0,d,e,f) self.cur_g.matrix(a,0,0,d,e,f)
return self.cur_g return self.cur_g
@ -59,10 +62,9 @@ class Plotter:
self.cur_d = None self.cur_d = None
def add_to_path(self, addition): def add_to_path(self, addition):
if self.cur_d: if not self.cur_d:
self.cur_d = self.cur_d + " " + addition self.cur_d = "M{} {}".format(self.pos[0],self.pos[1])
else: self.cur_d = self.cur_d + " " + addition
self.cur_d = addition
def invalidate_window(self): def invalidate_window(self):
self.finish_path() self.finish_path()
@ -80,13 +82,11 @@ class Plotter:
def ma(self, params): def ma(self, params):
l=coordlist(params,2) l=coordlist(params,2)
self.add_to_path("M{} {}".format(l[0],l[1]))
self.pos = (l[0],l[1]) self.pos = (l[0],l[1])
def mr(self, params): def mr(self, params):
l=coordlist(params,2) l=coordlist(params,2)
self.add_to_path("m{} {}".format(l[0],l[1])) self.pos = (self.pos[0]+l[0],self.pos[1]+l[1])
self.pos = (l[0],l[1])
def da(self, params): def da(self, params):
l=coordlist(params) l=coordlist(params)
@ -132,6 +132,7 @@ class Plotter:
self.text_size = float(params) self.text_size = float(params)
def ps(self,params): def ps(self,params):
self.finish_path()
self.pennum = int(params) - 1 self.pennum = int(params) - 1
def pl(self,params): def pl(self,params):