Field Mapping

http://la.water.usgs.gov/

GIS Geocoder allows for the conversion of Latitude and Longitude (Lat/Long) values into State, County, Township, Range, Section and USGS Quad (Texas: Abstract, Block, Grantee). For detail, please contact costudio .

mobile GIS and field mapping application running on Windows Mobile/Pocket PC/Smart Phone Sql Server CE GPS: Bluetooth enabled Sync with RDA/Replication Features: Google Map supported Custom Map Processing to fit on PDA Auto GPS reading as walk Drawing polygon, polyline and point on map support shape view, map view and data view UTM grid on map data format with Geographic/UTM Geographic and UTM data converter Export to KML, CSV GPS signal indicator information from EnvironmentalStudio.net

function inPoly(poly,px,py) { var npoints = poly.length; // number of points in polygon var xnew,ynew,xold,yold,x1,y1,x2,y2,i; var inside=false; if (npoints/2 < 3) { // points don't describe a polygon return false; } xold=poly[npoints-2]; yold=poly[npoints-1]; for (i=0 ; i < npoints ; i=i+2) { xnew=poly[i]; ynew=poly[i+1]; if (xnew > xold) { x1=xold; x2=xnew; y1=yold; y2=ynew; } else { x1=xnew; x2=xold; y1=ynew; y2=yold; } if ((xnew < px) == (px <= xold) && ((py-y1)*(x2-x1) < (y2-y1)*(px-x1))) { inside=!inside; } xold=xnew; yold=ynew; } return inside; }