本文整理汇总了Python中panda3d.core.PNMImage.hasAlpha方法的典型用法代码示例。如果您正苦于以下问题：Python PNMImage.hasAlpha方法的具体用法？Python PNMImage.hasAlpha怎么用？Python PNMImage.hasAlpha使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类panda3d.core.PNMImage的用法示例。
在下文中一共展示了PNMImage.hasAlpha方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from panda3d.core import PNMImage [as 别名]
# 或者: from panda3d.core.PNMImage import hasAlpha [as 别名]
def __init__(self, image_path, name=None,\
rows=1, cols=1, scale=1.0,\
twoSided=True, alpha=TRANS_ALPHA,\
repeatX=1, repeatY=1,\
anchorX=ALIGN_LEFT, anchorY=ALIGN_BOTTOM):
"""
Create a card textured with an image. The card is sized so that the ratio between the
card and image is the same.
"""
scale *= self.PIXEL_SCALE
self.animations = {}
self.scale = scale
self.repeatX = repeatX
self.repeatY = repeatY
self.flip = {'x':False,'y':False}
self.rows = rows
self.cols = cols
self.currentFrame = 0
self.currentAnim = None
self.loopAnim = False
self.frameInterrupt = True
# Create the NodePath
if name:
self.node = NodePath("Sprite2d:%s" % name)
else:
self.node = NodePath("Sprite2d:%s" % image_path)
# Set the attribute for transparency/twosided
self.node.node().setAttrib(TransparencyAttrib.make(alpha))
if twoSided:
self.node.setTwoSided(True)
# Make a filepath
self.imgFile = Filename(image_path)
if self.imgFile.empty():
raise IOError("File not found")
# Instead of loading it outright, check with the PNMImageHeader if we can open
# the file.
imgHead = PNMImageHeader()
if not imgHead.readHeader(self.imgFile):
raise IOError("PNMImageHeader could not read file. Try using absolute filepaths")
# Load the image with a PNMImage
image = PNMImage()
image.read(self.imgFile)
self.sizeX = image.getXSize()
self.sizeY = image.getYSize()
self.frames = []
for rowIdx in range(self.rows):
for colIdx in range(self.cols):
self.frames.append(Sprite2d.Cell(colIdx, rowIdx))
# We need to find the power of two size for the another PNMImage
# so that the texture thats loaded on the geometry won't have artifacts
textureSizeX = self.nextsize(self.sizeX)
textureSizeY = self.nextsize(self.sizeY)
# The actual size of the texture in memory
self.realSizeX = textureSizeX
self.realSizeY = textureSizeY
self.paddedImg = PNMImage(textureSizeX, textureSizeY)
if image.hasAlpha():
self.paddedImg.alphaFill(0)
# Copy the source image to the image we're actually using
self.paddedImg.blendSubImage(image, 0, 0)
# We're done with source image, clear it
image.clear()
# The pixel sizes for each cell
self.colSize = self.sizeX/self.cols
self.rowSize = self.sizeY/self.rows
# How much padding the texture has
self.paddingX = textureSizeX - self.sizeX
self.paddingY = textureSizeY - self.sizeY
# Set UV padding
self.uPad = float(self.paddingX)/textureSizeX
self.vPad = float(self.paddingY)/textureSizeY
# The UV dimensions for each cell
self.uSize = (1.0 - self.uPad) / self.cols
self.vSize = (1.0 - self.vPad) / self.rows
card = CardMaker("Sprite2d-Geom")
# The positions to create the card at
if anchorX == self.ALIGN_LEFT:
posLeft = 0
posRight = (self.colSize/scale)*repeatX
elif anchorX == self.ALIGN_CENTER:
#.........这里部分代码省略.........