help me with grobs

[CosmicTruth]

I have been trying to figure out the grob just to display a picture on the calculator. I am wondering what program to use and what are the steps to convert? i have psp and i got tif2grob.exe to work but the grob displays poorly on the calculator. can someone please give me some suggestions and or pointers how to do it right? (edit: for HP 50G)
tia

[Marcus von Cube]

(06-27-2014 02:34 AM)CosmicTruth Wrote:  i have psp and i got tif2grob.exe to work but the grob displays poorly on the calculator.

If I understand you correctly, you have a TIF image on your PC and you want to display it on the 50g? I'd do the following:

- Load the picture into a graphics application on the PC like IrfanView.

- Scale it down to the final resolution for display on the 50g.

- Convert it to black and white. The PC lets you select thresholds and filters to create the best results.

- Feed the converted picture to tif2grop and download it to the 50g.

[Jacob Wall]

(06-27-2014 02:34 AM)CosmicTruth Wrote:  I have been trying to figure out the grob just to display a picture on the calculator. I am wondering what program to use and what are the steps to convert? i have psp and i got tif2grob.exe to work but the grob displays poorly on the calculator. can someone please give me some suggestions and or pointers how to do it right? (edit: for HP 50G)
tia

Hi, have you tried CPicEdit at hpcalc.org? I've had success with that program to convert bitmaps to grobs in the past. Also great for creating pixel by pixel grobs on the PC with zoom level up.

Jacob

[CosmicTruth]

(06-27-2014 07:45 AM)Marcus von Cube Wrote:  

(06-27-2014 02:34 AM)CosmicTruth Wrote:  i have psp and i got tif2grob.exe to work but the grob displays poorly on the calculator.

If I understand you correctly, you have a TIF image on your PC and you want to display it on the 50g? I'd do the following:

- Load the picture into a graphics application on the PC like IrfanView.

- Scale it down to the final resolution for display on the 50g.

- Convert it to black and white. The PC lets you select thresholds and filters to create the best results.

- Feed the converted picture to tif2grop and download it to the 50g.

I tried this several times and it does not come out looking too good on the 50G.. but I am getting better, I made the lines wider and did negative image to make the background white and the lines black. finally it looks ok somewhat.

(06-28-2014 12:16 AM)Jacob Wall Wrote:  

(06-27-2014 02:34 AM)CosmicTruth Wrote:  I have been trying to figure out the grob just to display a picture on the calculator. I am wondering what program to use and what are the steps to convert? i have psp and i got tif2grob.exe to work but the grob displays poorly on the calculator. can someone please give me some suggestions and or pointers how to do it right? (edit: for HP 50G)
tia

Hi, have you tried CPicEdit at hpcalc.org? I've had success with that program to convert bitmaps to grobs in the past. Also great for creating pixel by pixel grobs on the PC with zoom level up.

Jacob

This is a real good program but i keep getting output that is 131 x 680 from it

[CosmicTruth]

the bmp I want to display:
  cap.bmp (Size: 30.99 KB / Downloads: 28)

the output from tif2grob is washed out even on the darkest setting and the output from cpicedit is great but 640 pixels high.
i will zip up the 2 grobs in case someone wants to look.


  CAP_grobs.zip (Size: 1.29 KB / Downloads: 7)
the cpicedit output is great if i can somehow figure out how to crop them to 1 image 131 x 80

[Jacob Wall]

(06-28-2014 03:18 AM)CosmicTruth Wrote:  the bmp I want to display:

the output from tif2grob is washed out even on the darkest setting and the output from cpicedit is great but 640 pixels high.
i will zip up the 2 grobs in case someone wants to look.


the cpicedit output is great if i can somehow figure out how to crop them to 1 image 131 x 80

Try this

Code:

\<< 0. R\->B DUP 2. \->LIST 130. R\->B 79. R\->B 2. \->LIST SUB
\>>

Of course with the 131x640 GROB on the stack.

Jacob

[CosmicTruth]

(06-28-2014 06:45 PM)Jacob Wall Wrote:  Try this

Code:

\<< 
0. 
R\->B 
DUP 
2. 
\->LIST 
130. 
R\->B 
79. 
R\->B 
2. 
\->LIST 
SUB
\>>

Of course with the 131x640 GROB on the stack.
Jacob

This works perfect. tyvm
wonder why the cpicedit.exe does not just output like this. i'm thinking a program in the PC output directory might be needed.

[CosmicTruth]

or:

Code:

%%HP: T(3)A(D)F(.);
\<< { # 0d # 0d } { # 130d # 79d } SUB
\>>

[CosmicTruth]

3grobs:


  hands.zip (Size: 5.05 KB / Downloads: 8)

[CosmicTruth]

I almost got it figured out...

Marilyn
Grob:

  Marilyn.zip (Size: 2.64 KB / Downloads: 5)

[MNH]

Cool!

[CosmicTruth]

(06-29-2014 12:14 PM)MNH Wrote:  Cool!

Ok then one last upload, I still have allot to learn.
here are more grobs in this zip file.
looking at the difference of binary and text grobs.

  CTgrobs.zip (Size: 5.23 KB / Downloads: 4)
if a moderator wants you can delete or move all these posts, they do no one any good except me.