optimization - WPF 3D and Helix 3D toolkit graphics with ~500,000 triangles in one viewport- optimizing -


i new stack overflow , new 3d graphics programming. have been given task of creating app read in data (currently reading delimited text file, read data arrays) , graphically display data in 3d. data x,y,z coordinates read 3d scanner scanning logs. need show 3d representation of these logs on screen, 4 different angles. reading data 2-dimensional point3d array , using create 3d models in helixviewport3d. use nested loop check data points in array within x,z bounds- , if need create triangle out of data. once entire array passed through, add model3dgroup children of viewport:

topmodel.content = topgroup; this.mainviewport.children.add(topmodel);

it takes 8 seconds take place , zooming,panning, rotating very slow data on screen (around 500,000 triangles). there ways improve performance of wpf 3d graphics? don't need able zoom/pan/rotate in finished app helpful debugging. final app same model shown statically 4 different ways, different sides. however, need able read in data , graphics display in 1-5 seconds. appreciated, , hope question clear!

edit: after doing more digging vertex buffering, need do. using way many points. if can point me literature on doing vertex/index buffering in c#, appreciated!

i have solved issue. input capt skyhawk! saying doubted wpf3d shortcoming helped me in right places. problem way wrote made every triangle it's own modelvisual3d!! re-wrote code contain 3 geometrymodel3d (sp?) objects, , triangles placed in meshgeometry3d , mesh used create model. made models render in < 0.1 seconds. have new issue- reason half of triangles showing in model in viewports. i'm not sure why, though may have many point3d points or many triangle indices in mesh.


Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers ...
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());...
Read more

uitableview - Create and use custom prototype table cells in xamarin ios using storyboard -

Image
is possible create , use 'custom' prototype table cells in xamarin ios (monotouch) using storyboard? i find stuart lodge explaining method using xib/nibs: http://www.youtube.com/watch?feature=player_embedded&v=vd1p2gz8jfy let's answer question! looking one. :) 1) open storyboard have viewcontroller tableview: add prototype cell (if there no cell added before): customize cell want (in case there custom uiimage , label): remember set height of cell. select whole tableview , properties window select "layout" tab. on top of properties window should see "row height" - put appropriate value: now select prototype cell once again. in properties window type name of class (it create code-behind class it). in case "friendscustomtableviewcell". after provide "identifier" cell. can see "friendcell". last thing set "style" property set custom. "name" field should empty. once click ...
Read more