lol re-read antony's post - ignore my last question thanks
On Wed, Aug 20, 2008 at 3:22 PM, allandt bik-elliott (thefieldcomic.com) < [EMAIL PROTECTED]> wrote: > hi guys > > thanks for the response. I've come to a similar conclusion myself. > > as the maps are fairly simple, i'm going to draw them in the api, saving > the total length as i go and then follow the route with a quick 'is this > closer to the point clicked than the last point i drew' check and save that > total and then use the two values to create a percentage of the total > length. > > if i were to adjust this to include rounded corners, how would i find out > what the length of the curveTo was? > > thanks again > a > > > On Wed, Aug 20, 2008 at 2:54 PM, Anthony Pace <[EMAIL PROTECTED]>wrote: > >> If anyone else has a better way I would love to hear it. >> >> Totally curved lines? or zig-zag with corners? or both? >> >> Try breaking the path travelled down to points. If you can calculate the >> distance between the last point and a new point made, you just need to sum >> up the values. >> example map/ path travelled. >> >> start >> .___. >> .____\. >> |.________. >> ._______./ >> finish >> >> just sum up the distances to find the total distance travelled. >> >> You will need to know basic the Pythagorean theorem, to find the length of >> a hypotenuse/distance between to points for straight lines, and if you need >> to calculate the curves it actually depends on the type of curve, so you >> will need to know this info. >> >> more info on curves...found it on google, if you don't know how to do >> these calculations it will take you a little time to work your way through >> the math: >> http://www.mathwords.com/a/arc_length_of_a_curve.htm >> >> hope that helps, >> Anthony >> >> >> >> >> allandt bik-elliott (thefieldcomic.com) wrote: >> >>> Hi guys >>> >>> I have a bit of maths problem to solve here and I've not found any >>> answers >>> on the Googles. >>> >>> I have several squiggly lines (they will be maps) and I need to find out, >>> if >>> a user clicks somewhere on one of the lines, how far along the line >>> they've >>> clicked. I also need to find out how long the line would be. >>> >>> How would I go about doing this, please? >>> >>> Hope you can help >>> A >>> _______________________________________________ >>> Flashcoders mailing list >>> Flashcoders@chattyfig.figleaf.com >>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >>> >>> >>> >> >> _______________________________________________ >> Flashcoders mailing list >> Flashcoders@chattyfig.figleaf.com >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders >> > > _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
