C ceaser Active Member Licensed User Jan 23, 2010 #1 Hi Agraham I am using your delauney dll in my surveying program:sign0188:. But now I need your help please. I can identify a triangle by clicking\tapping inside the triangle. How do I go about deleting the selected triangle from the array? Thanks Michael
Hi Agraham I am using your delauney dll in my surveying program:sign0188:. But now I need your help please. I can identify a triangle by clicking\tapping inside the triangle. How do I go about deleting the selected triangle from the array? Thanks Michael
agraham Expert Licensed User Longtime User Jan 23, 2010 #2 Not easily as arrays are fixed sizes in .NET. You need to copy the required array elements to a new array of the required length and re-assign the new arrray to your existing triangle array. This copying is likely to be fairly slow in Basic4ppc as I think your arrays are quite large. However I have for a while now had an unposted version of my http://www.b4x.com/forum/additional-libraries/2565-byteconverter-library.html#post31631 which can manipulate arrays as byte buffers. I have just posted it so take a look at that. In the archive is BufferDemo.sbp which shows how to remove an entry from a multi-dimensional array. This is likely to be an order of magnitude, if not more, faster than copying individual array elements.
Not easily as arrays are fixed sizes in .NET. You need to copy the required array elements to a new array of the required length and re-assign the new arrray to your existing triangle array. This copying is likely to be fairly slow in Basic4ppc as I think your arrays are quite large. However I have for a while now had an unposted version of my http://www.b4x.com/forum/additional-libraries/2565-byteconverter-library.html#post31631 which can manipulate arrays as byte buffers. I have just posted it so take a look at that. In the archive is BufferDemo.sbp which shows how to remove an entry from a multi-dimensional array. This is likely to be an order of magnitude, if not more, faster than copying individual array elements.
C ceaser Active Member Licensed User Jan 23, 2010 #3 Thank you very much Agraham.:sign0188: Regards Michael
