Internet Maps Tiles Viewer - Project study Upd.: 5.Mar.11

[ReFran 7]

Hi,

the I-Maps Tiles Viewer is a study how to download and view map tiles without using IE.

I thought before I start to complicate it (or integrate into in my other project) I will publish the basic-study.

You can simple start the script. A cache-folder (for Inetget) will be installed in @scriptdir\cache, if you don't change.

Because it's the first time I used GDI+ it would be fine if the GDI+ plus experts have a special look at the loops "Mapdownload" and "Mapemove".

For the startup I put in 3 OpenStreetmaps (mapnik,cycle,osmarender).

To add Googles Gmaps it's easy; Hybrid/satelitte needs some extra calculation; Yahoo and MS needs some different calculation.

Because finally I want the tool to get calibrated maps for gps-software I have to think about how to bind the tiles to bigger maps.

Can that be done with GDI+ or do I have to use an extra tool? The basic calculation for the needed coordinates is alredy in.

Enjoy,

Reinhard

Updated: 5.Mar.11

Put in Google Maps (Roadm.,Terrain,Satelite,Hybrid,Nightview). Also Osm VPN Bus&Trains - works not for all places, especially in US. Combo autofilled from Maptype_array

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>
#include <GDIPlus.au3>
#Include <WinAPI.au3>
#Include <Math.au3>

;; author: ReFran - autoIt-Forum
;; thread: http://www.autoitscript.com/forum/topic/126194-internet-maps-tiles-viewer-project-study/

#region toDo
; calculate LatLon for map and/or tiles NW/SO
; inetget with timeout
; mapAddress update after move (keep start, forward/backwards button)
; maptype cmb set up from arr
; mapgeo language set, dann Münster und nicht Muenster
; mapgeo ini
; mapmove by pixel (keys/mouse)
#endregion toDo

;; app related (mt = map tiles, arrays mostly 1 based
DIM $mtSize = 256 ;tile size in pixel
DIM $mtiRows = 3, $mtiCols = 3 ;other values not correctly support at time
DIM $mtFileNo = $mtiRows*$mtiCols+1, $mtFile[$mtFileNo], $mtImg[$mtFileNo]
DIM $tileNoActiv, $zoom = 13

DIM $cachePath = @scriptdir&"\cache\"
DIM $cacheState = 2  ; 0=not installed 1= don't cache maptiles; 2=use cache (should be standard)

DIM $geoBase = "Deutschland" ;take this if address is blank
DIM $geoURL = "http://maps.google.com/maps/geo?q={A}&output=csv"
    ;; {A} = placeholder for Address (real post/geo-addr. or GeoPoint(Lat,Lon) for reverse geocoding

                ;"MapPvId||MapPvName||MapPvUrl" &@lf _ ;|| because at least one URL contains "|"
DIM $mapPv_str= "OC||Osm Cycle map||http://andy.sandbox.cloudmade.com/tiles/cycle/{Z}/{X}/{Y}.png"  &@lf _
            &   "OM||Osm Mapnik map||http://tile.openstreetmap.org/{Z}/{X}/{Y}.png"                 &@lf _
            &   "OO||Osm Osmarender||http://tah.openstreetmap.org/Tiles/tile/{Z}/{X}/{Y}.png"       &@lf _
            &   "OV||Osm VPN B&B map (NotAll)||http://tile.xn--pnvkarte-m4a.de/tilegen/{Z}/{X}/{Y}.png"         &@lf _
            &   "--||--------------||http://tah.openstreetmap.org/Tiles/tile/{Z}/{X}/{Y}.png"       &@lf _
            &   "GR||Google Roadmap||http://mt3.google.com/vt/x={X}&y={Y}&z={Z}"                    &@lf _
            &   "GT||Google Terrain||http://khm.google.com/vt/lbw/lyrs=p&x={X}&y={Y}&z={Z}"         &@lf _
            &   "GH||Google Hybrid||http://mt1.google.com/vt/lyrs=y&x={X}&y={Y}&z={Z}"              &@lf _
            &   "GS||Google Satelite||http://khm1.google.com/kh/v=49&x={X}&y={Y}&z={Z}"             &@lf _
            &   "GN||Google Night||http://mt1.google.com/vt/lyrs=h@130&hl=de&src=api&x={X}&y={Y}&z={Z}";&@lf _
            ;&  "--||--------------||http://tah.openstreetmap.org/Tiles/tile/{Z}/{X}/{Y}.png"       &@lf _
            ;&  "YR||Yahoo Roadmap||http://maps1.yimg.com/hx/tl?v=4.2&x={X}&y={Y}&z={Z}"


    ;; placeholders: {Z} zoom based on GMAP-zoom, {X} tileNoX calc'ed from Lon; {Y} tileNoY calc'ed from Lat;
    ;; defined as string for later use with ini
DIM $mapPv_arr= stringSplit($mapPv_str,@lf)
DIM $mapPvIdDefault = "OM" ;set preferred maptype
DIM $mapPvId, $mapPvName, $mapPvURL
DIM $autoRedraw = 1 ;used to switch out autoredraw

DIM $pi = 3.14159265358979

;; GUI related
Dim $mainGUI, $MainGuiTitle = "IMap-TileViewer_v0.2",$mTileGui, $mtileCanvas, $Inp_Addr, $dino
Dim $mgw = 774, $mgh = 800, $mgt , $mgtDelta
DIM $lab_cache,$chb_cache,$inp_mtMoveStep,$cmb_mapType

#region MainMenuLoop
mainGui()
Func MainGui()

    $mainGUI = GUICreate($MainGuiTitle, $mgw, $mgh, 20, -1, _
        $WS_OVERLAPPEDWINDOW +$WS_CLIPCHILDREN + $WS_CLIPSIBLINGS)
        GUISetStyle(BitOR($WS_MINIMIZEBOX, $WS_MAXIMIZEBOX, $WS_CAPTION, $WS_SIZEBOX, $WS_SYSMENU))
    ;GUISetIcon("shell32.dll", 44) ;225)
    ;TraySetIcon("shell32.dll", 44) ; 225)
    GuiCtrlCreateLabel("", 49,  $mgh-160+2,$mgw-52, 28)
    GUISetBkColor(0x808080)
    $dino = GUICtrlCreateIcon(@WindowsDir & "\cursors\dinosaur.ani",-1, 50,  $mgh-160,28, 28)
    GUICtrlSetBkColor(-1,0x808080)
    ;; definition of tabs
    $mainTab = GUICtrlCreateTab(2, $mgh-150,$mgw-4,$mgh-655)
        GUICtrlSetResizing(-1, $GUI_DOCKHCENTER)
        $mainTab1 = GUICtrlCreateTabItem("View")
        $Inp_Addr = GuiCtrlCreateCombo("Wesel,de",5,$mgh-150+30,220,18)
            GuiCtrlsetdata(-1,"Bocholt,de|Venlo,nl|Taverne on the Green, New York, US|Hofbraeuhaus, Muenchen, DE|Zum Frosch, Prag, cz")
        $cmb_Zoom = GUICtrlCreateCombo("",230, $mgh-150+30,40,18)
            GuiCtrlsetdata(-1,"16|15|14|13|12|11|10","13")
        $inp_zoom = GUICtrlCreateInput(0,272,$mgh-150+30,19,22)
        $udn_zoom = GUICtrlCreateUpdown($inp_zoom)
        $btn_go =GUICtrlCreateButton("go",305,$mgh-150+30,30,20)
        $cmb_mapType = GuiCtrlCreateCombo("",5,$mgh-150+30+30,220,18)
            ;GuiCtrlsetdata(-1,"[OM] Osm Mapnik|[OC] Osm Cycle map|[OO] Osm Osmarender","[OM] Osm Mapnik")
        $btn_dnl = "";GUICtrlCreateButton("dnl",230,$mgh-150+30+30,30,30)

        $btn_mUp =GUICtrlCreateButton("Up",$mgw-100,$mgh-150+30,20,20)
        $btn_mDown =GUICtrlCreateButton("Dn",$mgw-100,$mgh-150+30+30,20,20)

        $btn_mleft =GUICtrlCreateButton("<-",$mgw-125,$mgh-150+30+15,20,20)
        $btn_mRight =GUICtrlCreateButton("->",$mgw-75,$mgh-150+30+15,20,20)
        $inp_mtMoveStep = GUICtrlCreateInput("1",$mgw-100,$mgh-30, 35, 20)
        $udn_mtMoveStep = GUICtrlCreateUpdown($inp_mtMoveStep)

        $lab_cache = GUICtrlCreateLabel("Cache",5,$mgh-30,220,18,$SS_SUNKEN)
        $chb_cache = GUICtrlCreateCheckbox("",230, $mgh-30,40,18)
        GUICtrlSetState ( -1, $GUI_CHECKED )
        GUICtrlSetTip(-1, "Switch cache on/off")

    GUICtrlCreateTabItem("")
    GUISetState()

    $mtileGUI = GUICreate("", $mgw-4, $mgh-160-2, 2, 2, $WS_CHILD, -1, $mainGUI)
    GUISetBkColor(0x808080)
    GUICtrlSetResizing(-1, $GUI_DOCKTOP)

    GUISetState()

    _GDIPlus_Startup()
    $mtileCanvas = _GDIPlus_GraphicsCreateFromHWND($mtileGUI)

    cacheCheck()
    MapPvSet($mapPvIdDefault)

    GUISetState()

    GUIRegisterMsg($WM_PAINT, "MY_WM_PAINT")
    $a = 50
    While 1
        $Msg = GUIGetMsg()
        ;; dino run
        ;$a += +0.1
        ;if $a > 700 then $a=50
        ;GUICtrlSetPos($dino, $a,$mgh-160)
        ;; msg loop
        Switch $Msg
            Case $GUI_EVENT_CLOSE
                _GDIPlus_Shutdown()
                Exit
            ;case $GUI_EVENT_RESTORE
            ;   mapDraw()

            case $udn_zoom
                $x=guictrlread($cmb_zoom)
                $i=guictrlread($inp_zoom)
                $s = $x+$i
                if $s < 1 then $s = 1
                if $s > 16 Then $s = 16
                guictrlsetData($inp_zoom,0)
                guictrlsetData($cmb_zoom,$s)
                if stringlen($tileNoActiv) > 1 then MapDownload($mapPvId,$tileNoActiv,$s)
            case $btn_go
                $x = GUICtrlRead($chb_cache)
                if $x = 1 Then
                    if $cacheState = 0 then dirCreate($cachePath)
                    $cacheState = 2
                else
                    $cacheState = 1
                    if not Fileexists($cachePath) then $cachState=0
                EndIf
                $Zoom = GuiCtrlRead($Cmb_Zoom)
                $inp = GuiCtrlRead($Inp_Addr)
                if $inp = "" then $inp = $geoBase
                $xs = GuiCtrlRead($cmb_mapType)
                $xid = stringmid($xs,2,2)
                mapPvSet($xid)
                $xa = stringreplace($geoUrl,"{A}",$inp)
                consolewrite("geoURL:"&$xa&@lf)
                $xa = InetGet($xa,@tempdir&"Temp.tmp")
                $geoGet = Fileread(@tempdir&"Temp.tmp")
                consolewrite("geoCSV:"&$geoGet&@lf)
                if not stringInstr($geoGet,'"') Then
                    $geoGet_arr = stringsplit($geoGet,",")
                    $tileNoActiv = LatLonToTileNumber($geoGet_arr[3],$geoGet_arr[4], $Zoom)
                    ;msgbox(0,"",$rc)
                    MapDownload($mapPvId,$tileNoActiv,$Zoom)
                endif
            ;; move by tile-steps
            case $btn_mUp
                MapTilesMove("u")
            case $btn_mDown
                MapTilesMove("d")
            case $btn_mleft
                MapTilesMove("l")
            case $btn_mRight
                MapTilesMove("r")

            case $udn_mtMoveStep , $inp_mtMoveStep
                $x = guictrlread($inp_mtMoveStep)
                if $x < 1 then guictrlsetdata($inp_mtMoveStep,1)

        EndSwitch
    WEnd
EndFunc   ;==>MainGui

Func MY_WM_PAINT($hWnd, $Msg, $wParam, $lParam)
    ;_WinAPI_RedrawWindow($mtileGUI, 0, 0, $RDW_UPDATENOW)
    if $autoRedraw = 1 then mapDraw()
    ;_WinAPI_RedrawWindow($mtileGUI, 0, 0, $RDW_VALIDATE)
    Return $GUI_RUNDEFMSG
EndFunc
#endregion MainMenuLoop

#Region Calc
func LatLonToTileNumber($lat,$lon,$zoom)
    $tileX= int(($lon+180)/360 *2^$zoom)

    $lat_rad = $lat*($pi/180)
    $tileY = int((1 - log(tan($lat_rad) + (1 / cos($lat_rad))) / $pi) / 2*2^$zoom)
    ;ytile = int((1.0 - log(tan(lat_rad) + (1 / cos(lat_rad))) / pi) / 2 * n)
    $tileNoActiv = $tileX&"|"&$tileY
    ;consolewrite("tileNO: "&$tileNumber&@crlf)
    return $tileNoActiv
endfunc



func TileNumberToLonLat($tileX,$tileY,$zoom)

    $lon = $tileX / 2^$zoom * 360.0 - 180.0
    $lat_rad = atan(_sinh($pi * (1 - 2 * $tileY / 2^$zoom)))
    $lat = _degree($lat_rad)
    $LatLonNW = $lon&","&$lat
    return $LatLonNW
endfunc

Func _Sinh(Const $nX)
    ;;  written by trancexx - autoIt-Forum
    If Not IsNumber($nX) Then
        Return SetError(1, 0, 0)
    EndIf

    Local $aResult
    Local $h_DLL = DllOpen("msvcrt.dll")
    If $h_DLL <> -1 Then $aResult = DllCall($h_DLL, "double:cdecl", "sinh", "double", $nX)
    If @error Then
        DllClose($h_DLL)
        Return SetError(2, 0, 0)
    EndIf
    DllClose($h_DLL)
    Return SetError(0, 0, $aResult[0])
EndFunc   ;==>_Sinh
#endRegion Calc

func cacheCheck()
    if Fileexists($cachePath) Then
        $ax = dirGetSize($cachePath,1)
        If IsArray($ax) Then
            GUICtrlsetdata($lab_cache,"Cache; "&int($ax[0]/1024)&" KB / "&$ax[1] &" Fls")
        endif
    Else
        dirCreate($cachePath)
        GUICtrlsetdata($lab_cache,"No Cache")
        GUICtrlSetState ($chb_cache, $GUI_UNCHECKED )
        $catcheState=0
    endif

endfunc


func MapPvSet($xmId = "OC")
    local $sname = ""
    for $i =1 to ubound($mapPv_arr)-1
        $x = stringsplit(stringreplace($mapPv_arr[$i],"||",@lf),@lf)
        if stringleft($mapPv_arr[$i],2) = $xmId Then
            $mapPvId = $x[1]
            $mapPvName = $x[2]
            $mapPvURL = $x[3]
            $mapPvIdDefault =  "[" &$x[1] &"] " &$x[2]
        endif
        $sName &= "["&$x[1]&"] "&$x[2]&"|"
    next
    $x = GuiCtrlRead($cmb_mapType)
    if $x = "" then GuiCtrlsetdata($cmb_mapType,$sName,$mapPvIdDefault)
endfunc
;GuiCtrlsetdata(-1,"[OM] Osm Mapnik|[OC] Osm Cycle map|[OO] Osm Osmarender","[OM] Osm Mapnik")
#region MapTilesAction
func MapTilesMove($where)
    consolewrite(@lf&"MapTilesMove > tileNo: "&$tileNoActiv &" to:"&$where &@lf)
    $mtmoveStep = guictrlread($inp_mtMoveStep)
    if stringinstr($tileNoActiv,"|") > 0 Then
        $tileNo_arr = stringsplit($tileNoActiv,"|")

        if $where = "l" then $tileNo_arr[1] = $tileNo_arr[1]-$mtMoveStep
        if $where = "r" then $tileNo_arr[1] = $tileNo_arr[1]+$mtMoveStep
        if $where = "u" then $tileNo_arr[2] = $tileNo_arr[2]-$mtMoveStep
        if $where = "d" then $tileNo_arr[2] = $tileNo_arr[2]+$mtMoveStep
        $tileNoActiv = $tileNo_arr[1]&"|"&$tileNo_arr[2]
        consolewrite("movezoom: "&$zoom)
        MapDownload($mapPvId,$TileNoActiv,$zoom)
    EndIf
endfunc

func MapDownload($Map,$TileNo,$zoom)
    $autoRedraw = 0 ;set to 0 because especially GuiCtrlsetdat init a redraw
    GUICtrlSetImage($dino,@WindowsDir& "\cursors\dinosau2.ani")
    consoleWrite(@lf&"MapDownLoad -> M:"&$map&" T:"&$TileNo&" Z:"&$zoom&@lf)
    ;; get tilenumbers
    consolewrite("tileNO: "&$tileNo&@crlf)
    GuiCtrlsetdata($lab_cache,"tileNO: "&$tileNo)
    if stringinstr($tileNo,"|") > 0 Then
        $tileNo_arr = stringsplit($tileNo,"|")
    EndIf
    ;; peprare url
    $ActiveUrl = $mapPvURL
    $mtiCenter = 2 ;5te Kachel wird zentriert bei 9Kachel
    local $iLeft=0, $iTop=0, $iget = ""
    for $i = 1 to $mtFileNo-1
        ;consolewrite("tileArr: "&$tileNo_arr[0]&@crlf)
        $x = $tileNo_arr[1] + $ileft - $mtiCenter+1
        $y = $tileNo_arr[2] + $iTop - $mtiCenter+1
        consolewrite($i&": "&$x&" / " &$y&@lf)
        GuiCtrlsetdata($lab_cache,"Get tile "&$i&": "&$x&" / " &$y&" / " &$zoom)
        $xfn = $cachePath&$map&"_"&$x&"_"&$y&"_"&$zoom&".png"
        if not FileExists($xfn) or $cacheState < 2 then
            $xurl = stringReplace(stringReplace(stringReplace($activeUrl,"{X}",$x),"{Y}",$y),"{Z}",$zoom)
            consolewrite($xurl&@lf)
            inetget($xurl,$xfn)
        endif
        $mtFile[$i] = $xfn
        $ileft +=+1
        if $ileft = $mticols Then
                $ileft = 0
                $itop +=+1
        endif
    next
    if IsHWnd($iget) then inetClose($iget)
    consolewrite("Mapdownload END -> call mapdraw"&@lf)

    MapImageDispose()
    mapDraw()
    consolewrite("MapDraw End")
    GUICtrlSetImage($dino,@WindowsDir& "\cursors\dinosaur.ani")
    cacheCheck()
    $autoRedraw = 1
endfunc


func MapDraw()
    ;; draw the maps on tilecanavas

    _WinAPI_RedrawWindow($mtileGUI, 0, 0, $RDW_UPDATENOW)
    local $ileft=0,$iTop=0
    for $i = 1 to $mtFileNo-1
        if $mtFile[$i] <> "" then
            $mtimg[$i] = _GDIPlus_ImageLoadFromFile($mtFile[$i])
            _GDIPlus_GraphicsDrawImageRect($mtileCanvas, $mtimg[$i], $ileft*$mtSize,$iTop*$mtSize,$mtSize,$mtSize )
        endif
        $ileft +=+1
        if $ileft = $mticols Then
            $ileft = 0
            $itop +=+1
        endif
    next

    _WinAPI_RedrawWindow($mtileGUI, 0, 0, $RDW_VALIDATE)
endfunc

func MapImageDispose()
    for $i = 1 to $mtFileNo-1
        _GDIPlus_ImageDispose($mtFile[$i])
    next
endfunc
#endregion MapTilesAction

Edited March 5, 2011 by ReFran

[twitchyliquid64 23]

Very good.

I am doubtless that serveral individuals will be intergrating this into their projects.

I am one of those individuals.

Code could use moar comments, thou reasonably understandable. I do believe your implementation of maps just on its own is of credit.

The best system possible would be to 'drag' the map around under your cursor, like google maps, thou im not sure if good ol' Autoit Interpreter has the grunt.

All in all, Great work!

Edited March 5, 2011 by hyperzap

[AppTux 0]

Nice script, could be nice if you also can use Google's maps

Maybe will I use this in another project

[ReFran 7]

Hi,

thanks for your interest.

Script updated.

Best regards, Reinhard