Ok, I just cleaned it up a bit and compiled it. You can download it from my local machine at ftp://pinhole:pinh...@cosmic9.dyn.dhs.org:21. Zone.exe is the program itself, and zone prog source.zip is the source code. I'm 56k so it might go pretty slow, but they're small files so it doesn't matter. George expressed interest in posting my program on his website, http://members.home.net/hmpi/, so you can probably get it there also. I'm taking a more advanced visual basic class next semester, so i might improve on it.
You will probably need the visual basic run time file to run it, you can get that at ftp://ftp.simtel.net/pub/simtelnet/win95/dll/simvb6-6.zip. John ----- Original Message ----- From: Larry Fratkin To: pinhole-discussion@p at ??????? Sent: Thursday, December 28, 2006 6:28 AM Subject: Re: [pinhole-discussion] Zone Plate Image Generator John and folks, If people would like one for photographing I would be happy to do it. Just let me know if there's interest. The calculators on my site were usually made because I thought I needed them and then thought that maybe others need them too. I would be interested in seeing the source code to see how you did it. I'm also curious what format you generated. My web host only allows Perl, so I'd have to translate it. Larry -----Original Message----- From: John Yeo <jonn...@thegrid.net> To: pinhole-discussion@p at ??????? <pinhole-discussion@p at ???????> Date: Wednesday, December 27, 2000 9:54 PM Subject: Re: [pinhole-discussion] Zone Plate Image Generator Hi Larry, Nevermind that. For some reason, microsoft paint displayed nothing, while photoshop displayed it properly. I was expecting an output that one would photograph from a distance like what they have at http://members.home.net/hmpi/Pinhole/Articles/ZonePlate/Zone_Plate.htm. Is that how it is supposed to work, or does it give one the actual size? I made a zone plate calculator a while ago in visual basic. It calculated ring sizes, magnified sizes (for photographing from a distance) and also calculated the true f stop (just the area of the clear rings). If anyone wants it, I can compile it and send it out. If you want to add to it, let me know and i'll give you the source code. I don't really care what you do with it, post it on the web, whatever. John ----- Original Message ----- From: Larry Fratkin To: pinhole-discussion@p at ??????? Sent: Wednesday, December 27, 2006 6:47 PM Subject: Re: [pinhole-discussion] Zone Plate Image Generator john, Yes, I did put a few hours into this, but it was fun. Thanks for appreciating that. What were the settings you typed in? I'd like to repeat them to see what I get. Also, sometimes you really have to look for the zone plate in the middle of the image. Larry -----Original Message----- From: John Yeo <jonn...@thegrid.net> To: pinhole-discussion@p at ??????? <pinhole-discussion@p at ???????> Date: Wednesday, December 27, 2000 4:48 PM Subject: Re: [pinhole-discussion] Zone Plate Image Generator Larry, Thanks for making this. I'm sure you have already put a lot of work into it... but i get nothing but a blank bitmap. No rings at all. John ----- Original Message ----- From: Larry Fratkin To: pinhole list Sent: Wednesday, December 27, 2006 3:52 PM Subject: [pinhole-discussion] Zone Plate Image Generator Folks, I have created a zone plate image generator so that I could make my own zone plates. The program downloads a .BMP so it's PC centric, I think. The idea was to use the program to generate a zone plate image and then take it to the bureau to have it put to film. They charge about $15.00 for this. I haven't tried it out yet so I don't know how well it works. I'll be visiting them on Friday and I'll drop it off then. The calculator/generator is at http://www.MrPinhole.com/zp.html la...@mrpinhole.com
