Displaying 4 results from an estimated 4 matches for "setalpha".
2007 Oct 27
1
Newton method iteration problem
...arget function (phi(x)-alpha) (allow input x and alpha)
target<-function(x,alpha){
pnorm(x)-alpha
}
#generate the first derivative of the of the target function
firstDerivative<-function(x){
exp(-(x^2)/2)/sqrt(2*pi)
}
# Finding the root by Newton method
rootFinding<-function(initialX,setAlpha){
while(target(initialX,setAlpha)!=0){
initialX<-initialX-(target(initialX,setAlpha)/firstfirstDerivative(initialX)
}
initialX
}
--
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2006 Sep 21
2
wxImage patches
...the RMagick sample to work with wxRuby2. They also
open up some functions that were %ignored that probably shouldn''t be (at
least with the typemap adjustment).
I think we may need to visit (or document carefully) what happens when
you pass in a string of data to the constructor or to SetAlpha. We need
to decide which setting of static_data is correct for the library.
Does anyone know of any reason we would or wouldn''t want to just set the
unsigned char * typemap in typemap.i?
Roy
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[1007] trunk/wxruby2/swig: Fixed Wx::Image#scale and rescale signature, also added needed constants.
2007 May 04
0
[1007] trunk/wxruby2/swig: Fixed Wx::Image#scale and rescale signature, also added needed constants.
...;cx"> wxImage Rotate90(bool clockwise = true) const;
</span><del>- wxImage Scale(int width , int height ) const;
</del><ins>+ wxImage Scale(int width, int height, int quality = wxIMAGE_QUALITY_NORMAL ) const;
</ins><span class="cx"> void SetAlpha(unsigned char * alpha = NULL, bool static_data = false ) ;
</span><span class="cx"> void SetAlpha(int x , int y , unsigned char alpha ) ;
</span><span class="cx"> void SetData(unsigned char* data ) ;
</span></span></pre>
</div&...
2007 Apr 13
0
[954] branches/wxruby2/wxwidgets_282: Additions to Image API 2.6 -> 2.8, remove comment cruft
...with
- . wxImage takes ownership of the pointer and will free it.
-         * \param unsigned char *
-        */
-
</del><span class="cx"> void SetAlpha(unsigned char * alpha = NULL, bool static_data = false ) ;
</span><del>-        /**
-         * \brief Sets the alpha value for the given pixel. This function...