I'm learning maya scripting from recent days and got confused about how to apply custom manipulator with user defined context. Select the obj and click Show Manipulator Tool doesn't work. This question maybe stupid but I just cannot find out how to do it.
There is an example in the devkit filmMoveManip.py and I wanna know how to use it. I know how to load it, just the way how to get the manipulator shown and use it.
add the script filmMoveManip.py to your plugin_path and follow the usage guide in the file header:
# filmMoveManip.py
# Scripted plug-in that displays a manipulator that
# modifies the film translate horizontal and vertical
# values.
#
# To use this plug-in:
# 1. execute the following Python:
# import maya
# maya.cmds.loadPlugin("filmMoveManip.py")
# maya.cmds.spFilmMoveManipCtxCmd( 'spFilmMoveManipContext1' )
# maya.cmds.setParent( 'Shelf1' )
# maya.cmds.toolButton( 'spFilmMoveManip1', cl='toolCluster', t='spFilmMoveManipContext1', i1="filmMoveManip.xpm" )
# 2. Open the outliner and select a camera shape such as perspShape
# 3. A manipulator with a horizontal and vertical axis will be displayed.
# 4. Move the axis to modify the film translate
Related
I am developing a tool in QGIS 3.16.2 and python 3.7 where i want to make a tool where i can identify any arbitrary point on the map canvas layer, which i already achieved. But when i select any point on the map canvas i want the drop down to only show points and not line and polygons too (see pictures further down).
The code i used to make map identify tool working is as follows:
def choose_a_point(self):
self.canvas = self.iface.mapCanvas()
self.identify_vector = QgsMapToolIdentify(self.canvas)
self.identify_vector.canvasReleaseEvent = self.store_m_value
self.canvas.setMapTool(self.identify_vector)
# Execute function that stores identified point info
def store_m_value(self, event):
result = self.identify_vector.identify(event.x(), event.y(), [], QgsMapToolIdentify.DefaultQgsSetting)
# Check if the selected feature is a point!
if result[0].mFeature.geometry().type() == QgsWkbTypes.PointGeometry:
if result:
pass # Do something useful here
When i click on a point in the map canvas i get following dropdown (seams like this function is built in to the QgsMapToolIdentify:
But i want to get the following result, so the lines and polygons are removed from the dropdown list:
I tried looking at the documentation for QgsMapToolIdentify on this page QT documentation - , but with no luck.
Hope someone can help me fix this problem.
Using Python to interface with Paraview, I want to get the "Points" data from an integrate variable filter.
I tried the GetArray("Points") but it can't find it even though you can clearly see it in the GUI if you go to spreadsheet view.
My code is below. With the GUI approach I get for Point ID = 0 the array "Points" has three values (0.54475, -1.27142e-18, 4.23808e-19) which makes sense because the default arrow is symmetric in y and z.
Is there any way to get the value 0.54475 inside python?
MWE
#Import Paraview Libraries
#import sys
#sys.path.append('Path\\To\\Paraview\\bin\\Lib\\site-packages')
from paraview.simple import *
#### disable automatic camera reset on 'Show'
paraview.simple._DisableFirstRenderCameraReset()
# create a new 'Arrow'
arrow1 = Arrow()
# create a new 'Integrate Variables'
integrateVariables1 = IntegrateVariables(Input=arrow1)
pdata = paraview.servermanager.Fetch(integrateVariables1).GetPointData()
print pdata.GetArray("Points") # prints None
You are very close. For all other arrays, you can access the value using the method you have written.
However VTK treats the point coordinates slightly differently, so the code you need for the point coordinates is:
arrow1 = Arrow()
integrateVariables1 = IntegrateVariables(Input=arrow1)
integrated_filter = paraview.servermanager.Fetch(integrateVariables1)
print integrated_filter.GetPoint(0)
This gives me: (0.5447500348091125, -1.2714243711743785e-18, 4.238081064918634e-19)
I would also suggest that you might want to do this in a Python Programmable Filter. Passing the filter from the server back to the client is not the best practice, and it is preferred to do all calculation on the server.
I have a little Bokeh plot with data points and associated text labels. What I want is for the text labels to only appear when the user selects points with the box select tool. This gets me close:
from bokeh.plotting import ColumnDataSource,figure,show
source = ColumnDataSource(
data=dict(
x=test[:,0],
y=test[:,1],
label=[unquote_plus(vocab_idx[i]) for i in range(len(test))]))
TOOLS="box_zoom,pan,reset,box_select"
p = figure(plot_width=400, plot_height=400,tools=TOOLS)
p.circle(x='x',y='y', size=10, color="red", alpha=0.25,source=source)
renderer = p.text(x='x',y='y',text='label',source=source)
renderer.nonselection_glyph.text_alpha=0.
show(p)
This is close, in that if I draw a box around some points, those text labels are shown and the rest are hidden, but the problem is that it renders all the text labels to start (which is not what I want). The initial plot should have all labels hidden, and they should only appear upon a box_select.
I thought I could start by rendering everything with alpha=0.0, and then setting a selection_glyph parameter, like this:
...
renderer = p.text(x='x',y='y',text='label',source=source,alpha=0.)
renderer.nonselection_glyph.text_alpha=0.
renderer.selection_glyph.text_alpha=1.
...
But this throws an error:
AttributeError: 'NoneType' object has no attribute 'text_alpha'
When trying to access the text_alpha attribute of selection_glyph.
I know I could use a hover effect here or similar, but need the labels to default to not being visible. An alternative, but not ideal, solution would be to have a toggle button that switches the labels on and off, but I'm not sure how to do that either.
What am I doing wrong here?
As of version 0.11.1, the value of selection_glyph is None by default. This is interpreted by BokehJS as "don't do anything different, just draw the glyph as normal". So you need to actually create a selection_glyph. There are two ways to do this, both demonstrated here:
http://docs.bokeh.org/en/latest/docs/user_guide/styling.html#selected-and-unselected-glyphs
Basically, they are
by hand
Create an actual Circle Bokeh model, something like:
selected_circle = Circle(fill_alpha=1, fill_color="firebrick", line_color=None)
renderer.selection_glyph = selected_circle
OR
using glyph method parameters
Alternatively, as a convenience Figure.circle accepts paramters like selection_fill_alpha or selection_color (basically any line or fill or text property, prefixed with selection_) :
p.circle(..., selection_color="firebrick")
Then a Circle will be created automatically and used for renderer.selection_glyph
I hope this is useful information. If so, it highlights that there are two possible ways that the project could be improved:
updating the docs to be explicit and highlight that renderer.selection_glyph is None by default
changing code so that renderer.selection_glyph is just a copy of renderer.glyph by default (then your original code would work)
Either would be small in scope and ideal for a new contributor. If you would be interested in working up a Pull Request to do either of these tasks, we (and other users) would certainly be grateful for the contribution. In which case, please just make an issue first at
https://github.com/bokeh/bokeh/issues
that references this discussion, and we can provide more details or answer any questions.
I have a bunch of poly vertex components selected. But sometimes users might select something else along with it (a joint, another mesh, etc.). I'm trying to find a way to test against everything selected to verify it is indeed a vertex. But I can't find anything like this.
Is there a python command to do this directly?
It may be useful for your use-case to use filterExpand with the selectionMask flag set to 31 to return just polygon vertex components from everything that has been selected.
Following is a simple sample (with some comments):
Try it out with different kind of objects and components selected.
import maya.cmds as cmds
# Will return EVERYTHING selected
all_selected = cmds.ls(sl=True)
# Will filter out and return just the verts
# from everything selected
just_the_selected_verts = cmds.filterExpand(sm=31)
Check out filterExpand in the docs here.
Not exactly. You can find objects which are ready for component selection with cmds.ls(hl=True). You can find selected object which aren't components with cmds.ls(o=True). That means you can isolate only the component selections indirectly like this:
set (cmds.ls(sl=True, o=False)) - set(cmds.ls(sl=True, o=True))
which makes a set of the whole selection, then one with only the objects, and finally subtracts the second from the first leaving only the component selections (note that will also pass attribute selections if you have those).
I am working on real time mapping of model with the user data obtained from Kinect.
I am able to get access to the individual bone using bge.types.BL_ArmatureObject().channels
which give the list of bones. I am not able to change the position bone. I tried to use rotation_euler to give it some rotation but it had no effect. Please tell me how to do it.
Maybe a little late, but for blender >= 2.5 this should do the trick:
# Get the whole bge scene
scene = bge.logic.getCurrentScene()
# Helper vars for convenience
source = scene.objects
# Get the whole Armature
main_arm = source.get('NAME OF YOUR ARMATURE')
main_arm.channels['NAME OF THE BONE YOU WANT TO ROTATE'].joint_rotation[ x, y ,z] # x,y,z = FLOAT VALUE
main_arm.update()
I also wrote this down in an extensive tutorial, starting here: http://www.warp1337.com/content/blender-robotics-part-1-introduction-and-modelling