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//vodafone call visualisation
//
//Tim Redfern Jan 2012
//
//scale of wall 10.57x2.8m - some parts are obscured
//
//416 x 110 in. ~ 62400x16500 ~ 1029 mpx ~ 2945 MB ram to open
//
//CousinMarriageWorld.svg, nominally 940 × 470 pixels, file size: 1.99 MB
//World_map_(Miller_cylindrical_projection,_blank).svg, nominally 634 × 477 pixels, file size: 1.84 MB
//wikimedia
//
//http://www.vectortemplates.com/vector-world-map.php
//requirements -
//must be able to transform points to a new projection
// maybe not through normal shape library
//must be able to find a random point within the shape
//
//250112 so far so good, can iterate children.
//safest thing is to establish that I can place a point as being inside or outside of a shape
//(are they closed properly!)
//If we can find points in them then we can start the main task:
//connecting parts of the SVG with rows in the spreadsheet
//maybe next first I should look at projections (to keep them happy)
//I have a map with rectangular coords,
//is easy to enough to play with the projection
// public boolean contains(RGeomElem shp)
// public geomerative.RRectangle getBounds()
// --> this is kind of hidden. why? anyway, it should be possible to use it
//another option is to use the OUTLINE of the country (as a purely geometric thing).
/*
http://en.wikipedia.org/wiki/3D_projection
a- the 3D position of a point A that is to be projected.
c- the 3D position of a point C representing the camera.
O- The orientation of the camera (represented, for instance, by Tait–Bryan angles).
e- the viewer's position relative to the display surface.[1]
http://williams.best.vwh.net/avform.htm#Crs
==good stuff
Intermediate points on a great circle
Here we find points (lat,lon) a given fraction of the distance (d) between them.
Suppose the starting point is (lat1,lon1) and the final point (lat2,lon2) and we want the point
a fraction f along the great circle route. f=0 is point 1. f=1 is point 2. The two points cannot
be antipodal ( i.e. lat1+lat2=0 and abs(lon1-lon2)=pi) because then the route is undefined.
The intermediate latitude and longitude is then given by:
A=sin((1-f)*d)/sin(d)
B=sin(f*d)/sin(d)
x = A*cos(lat1)*cos(lon1) + B*cos(lat2)*cos(lon2)
y = A*cos(lat1)*sin(lon1) + B*cos(lat2)*sin(lon2)
z = A*sin(lat1) + B*sin(lat2)
lat=atan2(z,sqrt(x^2+y^2))
lon=atan2(y,x)
//find
RPoint sp,ep,mp;
float f=0.8; //fraction along path;
float d=acos(sin(sp.y)*sin(ep.y)+cos(sp.y)*cos(ep.y)*cos(sp.x-ep.x));
float A=sin((1-f)*d)/sin(d);
float B=sin(f*d)/sin(d);
float x = A*cos(lat1)*cos(lon1) + B*cos(lat2)*cos(lon2);
float y = A*cos(lat1)*sin(lon1) + B*cos(lat2)*sin(lon2);
float z = A*sin(lat1) + B*sin(lat2);
mp.y=atan2(z,sqrt(x^2+y^2));
mp.x=atan2(y,x);
*/
import processing.pdf.*;
import geomerative.*;
class pointNormalise {
//take pixel coords and turn into lat/lng radians
float xo,xs,yo,ys;
pointNormalise(float _xo,float _xs,float _yo,float _ys) {
xo=_xo;
xs=_xs;
yo=_yo;
ys=_ys;
}
RPoint alise(float _x,float _y) {
//formalise
float px=((_x-xo)/xs)*PI*2; //26)/736);
float py=((_y-yo)/ys)*PI; //90)/390);
return new RPoint(px,py);
}
}
class pointMapper {
//transform
float px=(((_x-0.5)*0.25)+.25); //front half of sphere
float py=((_y-0.5)*0.3)+0.5;
//map to 3D curve
float r=getHeight()*4;
float x=r*cos(px*PI*2)*(sin(py*PI)) *2;
float z=r*sin(px*PI*2)*(sin(py*PI))-985;
float y=r*cos(py*PI)+(getHeight()*0.5)-210;
//camera at 0,0,0
//screen plane at 0,0,100
//(dx-ex)(ez/dz)
//(dy-ey)(ez/dz)
//rotate camera
return new RPoint(x*(100/z),y*(100/z));
}
}
RShape shp;
pointNormalise pnorm;
pointMapper shpmap;
String mode;
csvloader data;
calldata calls;
country Ireland;
void setup(){
println("vodaviz v0.11");
RG.init(this);
//mode="PDF";
size(832,220); //,PDF, "testoutput.pdf"); //P3D); //832,220); //nb pdf is 800x600
smooth();
float m = millis();
shp = RG.loadShape("countries_named_mercator.svg"); //test_drawing.svg"); //world_countries_outlines_split.svg");
pnorm = new pointNormalise(26,736,90,390);
shpmap = new pointMapper();
RG.ignoreStyles();
println("loaded svg in "+((millis()-m)*.001)+" seconds");
Ireland=new country("Ireland",0,0,shp.children[0]);
data=new csvloader("calls.csv");
calls=new calldata(data.data,shp);
background(0,0,0);
noFill();
stroke(255);
strokeWeight(.02);
//pick a random colour
stroke(random(200)+50, random(200)+50,random(200)+50);
println("plotting "+calls.countries.get(0).name+": "+calls.countries.get(0).calls+" calls");
}
int i=0;
int j=0;
void draw() {
//for (int i=0;i<calls.countries.size();i++) {
/*
beginShape();
for (int k=0;k<calls.getcountry(i).outline.paths[0].commands.length;k++) {
RPoint sp=calls.getcountry(i).outline.paths[0].commands[k].startPoint;
RPoint dp=shpmap.map(sp.x,sp.y);
vertex(dp.x+(getWidth()/2),dp.y+(getHeight()/2)); //,z); //z);
}
endShape();
*/
//pick a random colour
//stroke(random(100)+100, random(100)+100,random(100)+100);
//for (int j=0;j<calls.countries.get(i).calls;j++) {
RPoint sp=pnorm.alise(calls.countries.get(i).getpoint(100));
RPoint ep=pnorm.alise(Ireland.getpoint(100));
if (sp.x>0&&ep.x>0){
RPoint Sp=shpmap.map(sp.x,sp.y);
RPoint Ep=shpmap.map(ep.x,ep.y);
//find point along path
float f=0.8; //fraction along path;
float d=acos(sin(sp.y)*sin(ep.y)+cos(sp.y)*cos(ep.y)*cos(sp.x-ep.x));
float A=sin((1-f)*d)/sin(d);
float B=sin(f*d)/sin(d);
float x = A*cos(sp.y)*cos(sp.x) + B*cos(ep.y)*cos(ep.x);
float y = A*cos(sp.y)*sin(sp.x) + B*cos(ep.y)*sin(ep.x);
float z = A*sin(sp.y) + B*sin(ep.y);
RPoint mp=new RPoint(atan2(y,x),atan2(z,sqrt(pow(x,2)+pow(y,2))));
RPoint Mp=shpmap.map(mp.x,mp.y);
beginShape();
line(Sp.x+(getWidth()/2),Sp.y+(getHeight()/2),Mp.x+(getWidth()/2),Mp.y+(getHeight()/2));
line(Mp.x+(getWidth()/2),Mp.y+(getHeight()/2),Ep.x+(getWidth()/2),Ep.y+(getHeight()/2));
endShape();
}
//}
j=j+1;
if (j>(calls.countries.get(i).calls*.01)){
i++;
stroke(random(200)+50, random(200)+50,random(200)+50);
println("plotting "+calls.countries.get(i).name+": "+calls.countries.get(i).calls+" calls");
j=0;
}
//}
if (i==calls.countries.size()-1) {
println("finished");
noLoop();
}
//if (mode=="PDF") exit();
}
void mousePressed() {
}
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