WPF: rendering & timer

strange that there's a 24fps limit even on DispatcherTimer

have to use a thread to force a fast refresh rate

partial code:

bool running = true;
public delegate void updateDelegate();


public Window1(){
Thread t = new Thread(new ThreadStart(Run));
t.Start();
}

void Run()
{
while (running)
{

this.Dispatcher.Invoke(new updateDelegate(update), DispatcherPriority.Normal);
Thread.Sleep(5);
}
Console.WriteLine("ended thread");
}

void Window1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
running = false;
}
void update()
{
this.InvalidateVisual();
}

maya + python: UI

cubeHt = 2
rgb = [0.5, 0.5, 0.5]

# functions
def updateSlider(*args):
    intSlider(slider, value = int(args[0]), e=True);
def updateTxt(*args):
    intField(txt, value = int(args[0]), e=True);
def buttonPush(*args):
    print(str(args))
    n = intField(txt, q=True, value=True)
    createCubes(n)
def createCubes(n):
    i=0
    while(i<n):
        names = polyCube();
        move((i-n/2)*2, cubeHt, 0, names[0]);
        #apply material
        sets( names[0], e=True, forceElement=shadingGroup[0] )
        i= i+1
def newFile(*args):
    init()
def colorUpdate(*args):
    rgb = colorSliderGrp(color, q=True, rgb=True)
    print(shadingGroup[1])
    setAttr(shadingGroup[1]+".diffuse" , rgb[0], rgb[1], rgb[2], type='double3' ) ;
    
def createMaterials():
    # set up ambient occlusion for mental ray
    material = shadingNode('mib_illum_lambert', asShader=True)
    texture = shadingNode('mib_amb_occlusion', asShader=True)
    connectAttr(texture + '.outValue', material + '.ambient', f=True );

    # set up shading group, connect material to this group and apply group to cube object
    group = sets(  renderable=True, empty=True )
    connectAttr( material+".outValue", group+".miMaterialShader", force=True)    
    setAttr(material+".ambience", 0.5, 0.5, 0.5, type='double3' ) ;
    setAttr(material+".diffuse" , 0.5, 0.5, 0.5, type='double3' ) ;
    result = [group, material, texture]
    return result
def createPlane():
    names = polyPlane( w=20, h=20)
    white = createMaterials()
    sets( names[0], e=True, forceElement=white[0] )
def init():
    # new file
    file(new=True, force=True)
    # create a plane
    createPlane()
    shadingGroup = createMaterials()

init()
result = promptDialog(
  title='Welcome',
  message='Enter Name:',
  button=['OK', 'Cancel'],
  defaultButton='OK',
  cancelButton='Cancel',
  dismissString='Cancel')

if (result == 'OK'):
    name = promptDialog(query=True, text=True)
    confirmDialog( title='Welcome', message='Welcome, ' + name, button=['OK'] )

    
# create a window
w = 400
h = 240
win = window( title="Boon's UI", iconName='TBY', widthHeight=(w, h) )
c1 = columnLayout( columnAttach=('both', 5), rowSpacing=5, adjustableColumn=True )
r1 = rowLayout( numberOfColumns=3, parent=c1)
text( label='Number of cubes')
txt = intField(value=1, changeCommand=updateSlider)
slider = intSlider(min=0, max=10, value=1, step=1,  changeCommand=updateTxt)
color = colorSliderGrp( parent=c1, label='Color of cube', rgb=(1, 1, 1) ,changeCommand=colorUpdate)
button(parent=c1, label='Create cubes', command=buttonPush )
button(parent=c1, label='New File', command=newFile )
showWindow(win)

Flex: charting

MXML:

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
 <mx:Script source="chart.as" />
 <mx:LineChart x="62" y="78" id="linechart1" dataProvider="{expenses}">
  <mx:horizontalAxis>
           <mx:CategoryAxis
                dataProvider="{expenses}"
                categoryField="Month"
           />
        </mx:horizontalAxis>
  <mx:series>
   <mx:LineSeries displayName="Series 1" yField="Expenses" xField="Month" sortOnXField="true"/>
  </mx:series>
 </mx:LineChart>
 <mx:Legend dataProvider="{linechart1}"/>
 
</mx:WindowedApplication>

AS:

import mx.collections.*;
[Bindable]
 private var expenses:ArrayCollection = new ArrayCollection([
    {Month:"January", Profit:2000, Expenses:1500, Amount:450},
    {Month:"February", Profit:1000, Expenses:200, Amount:600},
    {Month:"March", Profit:1500, Expenses:500, Amount:300},
    {Month:"April", Profit:500, Expenses:300, Amount:500},
    {Month:"May", Profit:1000, Expenses:450, Amount:250},
    {Month:"June", Profit:2000, Expenses:500, Amount:700}
 ]);

Blogger: CSS not loaded & image upload not working

been getting the following errors:
Message: 'Textbar' is undefined
Line: 202
Char: 5
Code: 0
URI: http://www.blogger.com/post-create.g?blogID=8001423862883592815


Message: Object doesn't support this property or method
Line: 385
Char: 7
Code: 0
URI: http://www.blogger.com/post-create.g?blogID=8001423862883592815


Message: Object expected
Line: 233
Char: 1
Code: 0
URI: http://www.blogger.com/post-create.g?blogID=8001423862883592815

Error: Detect is not defined

Source File: http://www.blogger.com/static/v1/v-app/scripts/2280349093-post.images.js

Line: 214

sigh. search the internet.
strange solution: clear all cache in browser, and add the proxy server setting in the browser.

maya + python: mental ray nodes

# set up ambient occlusion for mental ray
material = shadingNode('mib_illum_lambert', asShader=True)
texture = shadingNode('mib_amb_occlusion', asShader=True)
connectAttr(texture + '.outValue', material + '.ambient', f=True );

# set up shading group, connect material to this group and apply group to cube object
group = 'mibMaterialGroup'
sets( name=group, renderable=True, empty=True )
connectAttr( material+".outValue", group+".miMaterialShader", force=True)
sets( cube, e=True, forceElement=group )
setAttr(material+".ambience", 0.5, 0.5, 0.5, type='double3' ) ;
setAttr(material+".diffuse" , 0.5, 0.5, 0.5, type='double3' ) ;

python+maya: animation

from maya.cmds import *
import random
import math

# Delete any existing scene
file(newFile=True, force=True)

names = sphere(r=10)
s = names[0] # object name
# call python script procedure haha() in anim.py module
expression(o=s, s='python("anim.haha()")', ae=True)
playbackOptions( minTime='0sec', maxTime='10sec', loop='continuous')
play( state=True )
viewFit()

# create a function to run every frame
def haha():
    x = getAttr(s + ".translateX")
    #print(x)
    t = currentTime(query=True)
    #print(t)
    x = 50* math.cos(math.pi * t / 120)
    # setAttr(s + ".translateX", x);
    setAttr(s + ".translate", x, 0, 0);

Apparently, must Bake Simulation before rendering. no dynamic content when rendering
Edit > Keys > Bake Simulation

Strange. some bug. in Render option > Common > End Frame. if i key in 240, it will reset to 10. but if i key in 100 first, it will accept. and then 240, it will accept. ???

python + maya: lighting

# create ambient light
light = ambientLight(intensity=0.4, softShadow=True, useRayTraceShadows=True)
# Create a directional light
#lightDir = directionalLight(rotation=(45, 30, 15))
lightDir = directionalLight(intensity=0.9, softShadow=True, useRayTraceShadows=True)

rotate(-60, 45, 0, lightDir);

# fit scene in active camera
viewFit();

python + maya: shading

can also use the following commands:
cmds.sets( name='redMaterialGroup', renderable=True, empty=True )
cmds.shadingNode( 'phong', name='redShader', asShader=True )
cmds.setAttr( 'redShader.color', 1, 0, 0, type='double3' )
cmds.surfaceShaderList( 'redShader', add='redMaterialGroup' )
cmds.sets( 'plane1', e=True, forceElement='redMaterialGroup' )

i=0
n = 50
limit = 20
lamb = []
lambSG = []
while i< n:
    size = random.uniform(0.1, 5)
    names = polyCube(o=True, w=size, h=size, d=size)
    k=0
    for name in names:
        print(str(k) + ": " + name)
        k = k + 1
    cube = names[0] # object name
    node = names[1] # node name

    lamb=lamb + [createNode('lambert', n=('lamb' + str(i)))]; # create lambert shader node
    lambSG= lambSG + [sets(n='lambSG'+str(i), empty=True, r=True, nss=True )] # create an empty shading group
    connectAttr( lamb[i]+".outColor", lambSG[i]+".surfaceShader", force=True) # connect attribute

    r = random.uniform(0, 1)
    g = random.uniform(0, 1)
    b = random.uniform(0, 1)

    setAttr(lamb[i]+".color", r, g, b, type='double3' ); # set to random colour
    sets(cube, fe=lambSG[i]) # set cube to have the above shading group

    move(random.uniform(-limit, limit),
         random.uniform(-limit, limit),
         random.uniform(-limit, limit), cube, r=True) 
    i = i+1

randomise cubes

file(f=True, new=True); # new file
i=0
n = 10
while i< n:
    size = random.uniform(0.1, 5)
    names = polyCube(o=True, w=size, h=size, d=size)
    cube = names[0]
    move(random.uniform(-5, 5),
         random.uniform(-5, 5),
         random.uniform(-5, 5), cube, r=True) 
    i = i+1

Maya and Python - 1st try

C:\Documents and Settings\{username}\My Documents\maya\{version}\Maya.env
PYTHONPATH="C:\Documents and Settings\{username}\My Documents\maya\scripts"
* for Mac OS, DON'T use double quotes "..."
instead eg.: PYTHONPATH = /Users/username/Documents/maya/scripts

default for Mac OSX: ~/Library/Preferences/Autodesk/maya//scripts

start new hello.py file
put into the "scripts" folder

start maya. open Script Editor window
import hello
(to reload, use reload(hello))

.pyc compiled python also works in the scripts folder

sample py code:
print("hello world");
from maya.cmds import *
file(f=True, new=True); # new file
#select(all=True) # select all objects
#delete(all=True) # delete all objects. not supported anymore. Use "file -f -new;" instead.
# create a polygon cube
# store all names
names = polyCube(ch=True, o=True,w=5.038671,h=3.648038,d=3.788829,cuv=4)
# use for loop to print out the object and node name
#for s in names:
# print(s);
cube = names[0]
print(cube)
move(10, 0, 0, cube, r=True) # move (10, 0, 0), note that the order of arguments is different from MEL

just realised from the maya help doc:
"Objects and arguments are passed to commands as they would be in MEL, but they must be passed in the following order:

command arguments object flags/named arguments

This is different from MEL where the ordering requires that objects appear at the end of the argument list. However, Python requires that named arguments come after all other arguments."
eg.: move(10, 0, 0, cube, r=True) # python
MEL: move -r 10 0 0 cube

&

"Maya Python implementation requires you to assign a boolean argument to those flags that do not normally take any arguments."
eg.: file(f=True, new=True); # python
MEL: file -f -new

save the following python script on shelf:
import hello
reload(hello)

Script Editor > File > Save Script to Shelf...
this will facilitate easier execution of the hello.py script

Recertified Flash and Dreamweaver CS4 ACE

Yay! passed the recertification exam for Flash and Dreamweaver CS4 ACE