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mirror of synced 2024-11-28 07:50:51 +01:00

Slightly more correct transform updating. Does not currently matter but affects some 3D transforms.

This commit is contained in:
Jennifer Taylor 2021-08-03 17:03:35 +00:00
parent 9c3010bcbd
commit 44f6a7fee0
2 changed files with 64 additions and 2 deletions

View File

@ -745,7 +745,7 @@ class AFPRenderer(VerboseOutput):
if obj.object_id == tag.object_id and obj.depth == tag.depth:
new_mult_color = tag.mult_color or obj.mult_color
new_add_color = tag.add_color or obj.add_color
new_transform = tag.transform or obj.transform
new_transform = obj.transform.update(tag.transform) if tag.transform is not None else obj.transform
new_rotation_origin = tag.rotation_origin or obj.rotation_origin
new_blend = tag.blend or obj.blend

View File

@ -156,15 +156,22 @@ class Matrix:
self.a41 = a41
self.a42 = a42
self.a43 = a43
self.__scale_set = True
self.__rotate_set = True
self.__translate_set = True
@staticmethod
def identity() -> "Matrix":
return Matrix(
new = Matrix(
a11=1.0, a12=0.0, a13=0.0,
a21=0.0, a22=1.0, a23=0.0,
a31=0.0, a32=0.0, a33=1.0,
a41=0.0, a42=0.0, a43=0.0,
)
new.__scale_set = False
new.__rotate_set = False
new.__translate_set = False
return new
@staticmethod
def affine(*, a: float, b: float, c: float, d: float, tx: float, ty: float) -> "Matrix":
@ -175,6 +182,7 @@ class Matrix:
a41=tx, a42=ty, a43=0.0,
)
@property
def __is_affine(self) -> bool:
return (
round(abs(self.a13), 5) == 0.0 and
@ -211,6 +219,49 @@ class Matrix:
'a43': self.a43,
}
def update(self, other: "Matrix") -> "Matrix":
new = Matrix(
a11=self.a11,
a12=self.a12,
a13=self.a13,
a21=self.a21,
a22=self.a22,
a23=self.a23,
a31=self.a31,
a32=self.a32,
a33=self.a33,
a41=self.a41,
a42=self.a42,
a43=self.a43,
)
if not other.__is_affine:
new.a11 = other.a11
new.a12 = other.a12
new.a13 = other.a13
new.a21 = other.a21
new.a22 = other.a22
new.a23 = other.a23
new.a31 = other.a31
new.a32 = other.a32
new.a33 = other.a33
new.a41 = other.a41
new.a42 = other.a42
new.a43 = other.a43
else:
if other.__scale_set:
new.a = other.a
new.d = other.d
if other.__rotate_set:
new.b = other.b
new.c = other.c
if other.__translate_set:
new.tx = other.tx
new.ty = other.ty
new.tz = other.tz
return new
@property
def xscale(self) -> float:
return math.sqrt((self.a11 * self.a11) + (self.a12 * self.a12) + (self.a13 * self.a13))
@ -219,12 +270,17 @@ class Matrix:
def yscale(self) -> float:
return math.sqrt((self.a21 * self.a21) + (self.a22 * self.a22) + (self.a23 * self.a23))
@property
def zscale(self) -> float:
return math.sqrt((self.a31 * self.a31) + (self.a32 * self.a32) + (self.a33 * self.a33))
@property
def a(self) -> float:
return self.a11
@a.setter
def a(self, val: float) -> None:
self.__scale_set = True
self.a11 = val
@property
@ -233,6 +289,7 @@ class Matrix:
@b.setter
def b(self, val: float) -> None:
self.__rotate_set = True
self.a12 = val
@property
@ -241,6 +298,7 @@ class Matrix:
@c.setter
def c(self, val: float) -> None:
self.__rotate_set = True
self.a21 = val
@property
@ -249,6 +307,7 @@ class Matrix:
@d.setter
def d(self, val: float) -> None:
self.__scale_set = True
self.a22 = val
@property
@ -257,6 +316,7 @@ class Matrix:
@tx.setter
def tx(self, val: float) -> None:
self.__translate_set = True
self.a41 = val
@property
@ -265,6 +325,7 @@ class Matrix:
@ty.setter
def ty(self, val: float) -> None:
self.__translate_set = True
self.a42 = val
@property
@ -273,6 +334,7 @@ class Matrix:
@tz.setter
def tz(self, val: float) -> None:
self.__translate_set = True
self.a43 = val
def multiply_point(self, point: Point) -> Point: