capture maps

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5 total messages Started by Anton Fri, 14 Mar 2008 11:35

#36

Author: Anton
Date: Fri, 14 Mar 2008 11:35

14 lines
1127 bytes

Hello,

Using TCppWebBrowser I made an application to show Google Maps or  Microsoft 
Virtual Earth.

Now I'm looking for a way to capture those maps in a jpeg.

I wonder if someone has an idea to do this.

Thanks,

regards

Anton

Re: capture maps

#40

Author: Brian
Date: Mon, 31 Mar 2008 18:13

40 lines
2454 bytes

> Using TCppWebBrowser I made an application to show Google Maps or
> Microsoft Virtual Earth.
> 
> Now I'm looking for a way to capture those maps in a jpeg.
> 
I did this a while ago (if I remember correctly, I owe Remy a credit or two):

  TComInterface<IHTMLDocument2> Doc;
  TComInterface<IHTMLStyle> Style;
  TComInterface<IHTMLElement> Body;
  TComInterface<IHTMLBodyElement> BodyElement;
  TComInterface<IViewObject> ViewObject;

  { if(SUCCEEDED(web->Document->QueryInterface(IID_IHTMLDocument2,(LPVOID*)&Doc)))
    { if(SUCCEEDED(Doc->get_body(&Body)))
      { if(SUCCEEDED(Body->QueryInterface(IID_IHTMLBodyElement,(LPVOID*)&BodyElement)))
        { BodyElement->put_noWrap(VARIANT_TRUE);
          // hide scrollbars
          if( SUCCEEDED(Body->get_style(&Style)))
            Style->put_borderStyle(WideString("none"));
          BodyElement->put_scroll(WideString("no"));
          web->Document->QueryInterface(IID_IViewObject,(LPVOID*)&ViewObject);
          if(ViewObject)
          { RECT SourceRect=Rect(0,0,web->Width,web->Height);
            Graphics::TBitmap *bitmap=new Graphics::TBitmap;
            bitmap->PixelFormat=pf32bit;
            bitmap->Height=web->Height;
            bitmap->Width=web->Width;
            if(SUCCEEDED(ViewObject->Draw(
                                DVASPECT_CONTENT,1,NULL,NULL,
                                this->Handle,bitmap->Canvas->Handle,
                                (_RECTL *) &SourceRect, NULL, NULL,0)))
            { ...
              delete bitmap;
            }
          }
        }
      }
    }
  }

Re: capture maps

#41

Author: Anton
Date: Tue, 01 Apr 2008 19:23

63 lines
2863 bytes

Thank you very much for your answer.

Maybe I will try it, but by accident I found an easier way to download the 
images.

Nevertheless thanks again.

regards,

Anton





"Brian" <brian@nospam.net> schreef in bericht 
news:2f97fdd08a398ca61482f0b0c0e@newsgroups.borland.com...
>> Using TCppWebBrowser I made an application to show Google Maps or
>> Microsoft Virtual Earth.
>>
>> Now I'm looking for a way to capture those maps in a jpeg.
>>
> I did this a while ago (if I remember correctly, I owe Remy a credit or 
> two):
>
>  TComInterface<IHTMLDocument2> Doc;
>  TComInterface<IHTMLStyle> Style;
>  TComInterface<IHTMLElement> Body;
>  TComInterface<IHTMLBodyElement> BodyElement;
>  TComInterface<IViewObject> ViewObject;
>
>  { 
> if(SUCCEEDED(web->Document->QueryInterface(IID_IHTMLDocument2,(LPVOID*)&Doc)))
>    { if(SUCCEEDED(Doc->get_body(&Body)))
>      { 
> if(SUCCEEDED(Body->QueryInterface(IID_IHTMLBodyElement,(LPVOID*)&BodyElement)))
>        { BodyElement->put_noWrap(VARIANT_TRUE);
>          // hide scrollbars
>          if( SUCCEEDED(Body->get_style(&Style)))
>            Style->put_borderStyle(WideString("none"));
>          BodyElement->put_scroll(WideString("no"));
> 
> web->Document->QueryInterface(IID_IViewObject,(LPVOID*)&ViewObject);
>          if(ViewObject)
>          { RECT SourceRect=Rect(0,0,web->Width,web->Height);
>            Graphics::TBitmap *bitmap=new Graphics::TBitmap;
>            bitmap->PixelFormat=pf32bit;
>            bitmap->Height=web->Height;
>            bitmap->Width=web->Width;
>            if(SUCCEEDED(ViewObject->Draw(
>                                DVASPECT_CONTENT,1,NULL,NULL,
>                                this->Handle,bitmap->Canvas->Handle,
>                                (_RECTL *) &SourceRect, NULL, NULL,0)))
>            { ...
>              delete bitmap;
>            }
>          }
>        }
>      }
>    }
>  }
>
>

Re: capture maps

#42

Author: Daryl
Date: Wed, 02 Apr 2008 08:01

9 lines
1362 bytes

> Maybe I will try it, but by accident I found an easier way to download the 
> images.

Anton
I would be interested in how you did this - could you please explain and 
perhaps share the code used to do this?

thanks
daryl

Re: capture maps

#113

Author: Anton
Date: Thu, 03 Jul 2008 20:05

50 lines
2282 bytes

Hi Daryl,

At first I have to say I feel very sorry that I did not see your question 
earlier.

Nevertheless here is the answer, maybe you don't need it anymore, but in 
that case just forget it.

In fact this solution has not much to do with C++.

In the first place you need the VirtualEarth Tile Name 
generator:http://www.gnewt.org/timoney/vetileinfo.php

This php-application generates the name of the picture by inputting the lat 
& lon coordinates.

if you put 0,50,4,51,10 for min lon, min lat, max lon, max lat and zoomlevel 
10

you will receive several names.

Then you can put the name in the next sentence and you get the picture

http://t0.tiles.virtualearth.net/tiles/h0313131331.pg?g=117

the h stands for hybrid I think.



I suppose  there are more combinations available, but this is what I found 
out.

Regards

Anton



"Daryl" <devaccount@hotmail.com> schreef in bericht 
news:47f33d62@newsgroups.borland.com...
>> Maybe I will try it, but by accident I found an easier way to download 
>> the images.
>
> Anton
> I would be interested in how you did this - could you please explain and 
> perhaps share the code used to do this?
>
> thanks
> daryl
>

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