DPlot

[walleye3313]

David,

i have gotten the following:

Error in CreateCompatibleBitmap=0x00000008, Size 802x616744

i suspect there is a size issue, can you fill me in on the error and any limitations that i need to work around?

thanks
jerry

[DPlotAdmin]

Holy cow! Just when I think I've seen it all...

Do you really want a bitmap 616,744 pixels tall??? If so and you don't mind me asking, what in the world are you up to?

The error code 8 maps to "Not enough storage is available to process this command." Not a big surprise, as a bitmap that size on a 24-bit display requires 1,483,886,064 bytes (roughly 1.4 Gb). On NT4 the maximum size is 48Mb. I couldn't find any limitations on 2000 or XP (but didn't spend a lot of time looking). The problem is likely that you simply don't have enough memory.
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[walleye3313]

LOL,

i had a hunch it was something like that!

now i have an idea where to look in the code. i used the DPM to get the corners of the plot and then use the distance between the corners to size the bitmap. must be an error in the formula or something unexpected in the data, this data came from down near the equator and in the eastern hemisphere.

glad i could make you smile!

thanks
jerry

[walleye3313]

i don't see the problem, here is the code i'm using:

[DPlotAdmin]

I can't explain why you'd get this:

[walleye3313]

[walleye3313]

Ok, i posted that so you could read what some of my thinking has been.

so if i use the hll, vll etc, to determine the pixel locations of the corners of the plot then is there a way to get the x and y values of the same corners? (or can i force them to be some x and y values that i want by using [ManualScale(xlo,ylo,xhi,yhi |,zlo,zhi | )] so that i can then match up the pixel locations to x,y pairs and scale from there, I THINK THAT MAY BE THE ANSWER!)

if so then i can determine the scale of the plot and resize as needed to give me ~1 meter per pixel and to get the ocordinates of each pixel. i do see that the bitmap is larger than the plot but that won't be an issue in terms of final data because the hll, etc. will allow me to be sure not to look outside of the actual plot.

thanks for rabling through this with me.

jerry

edit:

suppose i do this:

call the plot once to get the DPM.xhi, etc.

then replot using [ManualScale(DPM.xlo,DPM.ylo,DPM.xhi,DPM.yhi )]

i should then get a plot where the lower left corner coordinates in pixels (hll,vll) is the location of (DPM.xlo,DPM.ylo) and likewise for the upper left. and i can scale from there for any pixel. i could also then determine the scale in meters per pixel using [(DPM.xhi-DPM.xlo)/(hur-hll)].

[DPlotAdmin]

While you can do this:

[walleye3313]

Maybe I finally get it, sometimes i need things to be painfully obvious,

I'll play around with this some more and see what happens, i'l try using the metrics to scale and see of the results are what i expect.

thanks again,
jerry