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2018-06-28T21:09:57Z

1版をインポートしました

wiki>Niasw: Created page with "=== Script Detail === This page is to explain how Z Data Surface addon works. The key file is the python scripts: add_mesh_z_data_surface.py. This page only points out t..."

2014-08-17T08:24:59Z

Created page with "=== Script Detail === This page is to explain how Z Data Surface addon works. The key file is the python scripts: add_mesh_z_data_surface.py. This page only points out t..."

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=== Script Detail ===

This page is to explain how Z Data Surface addon works.

The key file is the python scripts: add_mesh_z_data_surface.py.
This page only points out the unique informations, others are similar with [http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Add_Mesh/Data_Surface/Text_Data_Surface Text Data Surface].

=== add_mesh_z_data_surface.py ===

The input parameters are different from Text Data Surface.
<source lang="python">
class AddZDataSurface(bpy.types.Operator):
...

zFile = StringProperty(name="Data File of Z(X,Y)",
description="Z=z(X,Y). (Table Text)",
default=addon_utils.paths()[0]+"/add_mesh_DataSurface/csvdata.csv", subtype="FILE_PATH")
loop = BoolProperty(name="Loop in X Direction",
description="Loop in X direction or not?",
default=False)
flip = BoolProperty(name="Flip Normal Vector",
description="Flip the normal vector of surfaces or not?",
default=False)
tran = BoolProperty(name="Switch X <-> Y vec",
description="Switch x <-> y, same with transposing matrix",
default=False)

...
</source>
There is only table data in one file. This gives convenience to one have data in a table form.

Since table forms are different from common matrices, the parsing method should be modified.

In execute(), I use
<source lang="python">
uNum, vNum, zValue, xValue, yValue = loadZData(zFile)
</source>
to acquire all coordinate information needed to create mesh.

In loadZData(), try to read the 1st line as x vector
<source lang="python">
textLine = fileHandler.readline()
textDataLine = re.split('[^(0-9|e|E|\+|\-|\.)]+', textLine) # use regular expression to split data
try:
while True:
textDataLine.remove('')
except:
pass
if textDataLine:
uNum = len(textDataLine)
xList=[float(it) for it in textDataLine]
</source>
Then loop reading the rest lines as (y element + z element vector). Due to y elements in the beginning of these lines, the length of data list is one more than the 1st line.
<source lang="python">
textLine = fileHandler.readline()
while textLine:
textDataLine = re.split('[^(0-9|e|E|\+|\-|\.)]+', textLine) # use regular expression to split data
try:
while True:
textDataLine.remove('')
except:
pass
if textDataLine:
if (uNum!=0):
vNum = vNum + 1
if (uNum!=len(textDataLine) - 1):
raise Exception("Error: Raw data matrix!",
"Hint: Horizontal length of each line should be the same. ("
+str(uNum)+"!="+str(len(textDataLine)-1)+")")
yList.append(float(textDataLine.pop(0)))
dataList.append([float(it) for it in textDataLine])
else:
uNum = len(textDataLine)
xList=[float(it) for it in textDataLine]
textLine = fileHandler.readline()
</source>
The if (uNum!=0) condition ensures that empty lines or text comments will not influence data reading process.

These are how it is different from Text Data Surface module.

=== Thanks ===

Same with Text Data Surface, "makeFaces" method and "create_mesh_and_object" method are from Blender addon [http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Add_Mesh/Add_Extra add extra objects]. Thank Pontiac.

If you are still not satisfied, please go to the source scripts.

------
* back to [http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Add_Mesh/Data_Surface Data Surface]

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Yamyam: 1版 をインポートしました

wiki>Niasw: Created page with "=== Script Detail === This page is to explain how Z Data Surface addon works. The key file is the python scripts: add_mesh_z_data_surface.py. This page only points out t..."

Yamyam: 1版をインポートしました