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Author Topic: detailed rivers.  (Read 2945 times)

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Baco

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detailed rivers.
« on: January 06, 2012, 12:30:37 PM »

Hi guys, I am wworkin on Cuba, but i find that Microderm does not do a grat ejob on rivers. Being an tropical island, it has a pletora of rivers.. What I currentlly do is take teh rivers from Google maps, and paste them on my C map. of course redrawing every river by hand witch is very time consuming...
How do you guys deal with rivers? do you also draw them manually?

Any advice is welcome.
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agracier

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Re: detailed rivers.
« Reply #1 on: January 07, 2012, 11:03:32 AM »

Hi guys, I am wworkin on Cuba, but i find that Microderm does not do a grat ejob on rivers. Being an tropical island, it has a pletora of rivers.. What I currentlly do is take teh rivers from Google maps, and paste them on my C map. of course redrawing every river by hand witch is very time consuming...
How do you guys deal with rivers? do you also draw them manually?

Any advice is welcome.

I usually take a map from some source or other - maps.google or http://www.maps-for-free.com/ and find the relevant river info you need. Maps for free for instance lets you turn river layer on or off.

In any case, make a new with that and resize until it fits over your own map in the correct proportion.

Then on a new layer, I start tracing by hand (yes indeed by Jove) the rivers I wish to include on the map. It is best to make them 3 pixels wide at least. Anything less and they may not show up in the game depending on how much you blur/soften this layer. You can make them wider if this works out for your map, say with large rivers or nearer the mouthing ...

Sometimes it also helps to blow up map_h to the same size as My_mpaC, insert it as a layer and then make sure that you trace the rivers over the lowest possible terrain ... or conversely, use the original gray bmp image which you made in Microdem and trace over that ...

Another method that works well with the large bmp layer is to select with a magic wand tool with 0 tolerance and then using a bit of good judgement, selecting the areas on the large bmp map, which you know to be rivers or lakes. By holding down <shift> in psp7, you can make multiple selections of such areas, and then on another layer, fill them in with black, thus creating a layer of rivers and lakes. You will of course still have to draw a lot in by hand, but this method does have the effect of creating nice looking rivers with irregular features. And it is quite fast and easy.

But it only works well for very large rivers or deltas or lakes ... I did the rivers for the Hankow map this way for the first time, those very wide and winding and intricate rivers and canals that would otherwise drive one totally bonkers.
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mandrill

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Re: detailed rivers.
« Reply #2 on: January 19, 2012, 08:11:12 PM »

Baco, your Cuba rivers may be so small that you might just want to include a couple in your map. REmember that the program renders the rivers as quite wide. You need 3 pixels width x 25 meters real life equivalent.

But like Agracier, I drew my rivers in by hand following the contours of the map_h which I copied and superimposed over a 25% scale copy of the map_c.
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VF-51_Cobraj

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Re: detailed rivers.
« Reply #3 on: January 22, 2012, 10:33:38 PM »

Hi all,

Baco, can you send me or post an example of the Cuba map you are building please? I am also interested in building a Cuba map and would work with you on it. My group flys in SEOW events so a map made would need roads map and other objects to be used in SEOW engine.

Is the map including Bermuda and Florida region too?
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Catahoulak9

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Re: detailed rivers.
« Reply #4 on: January 23, 2012, 05:53:20 AM »

Key West would be cool. Then I could bomb my mother-in-law's old house.
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agracier

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Re: detailed rivers.
« Reply #5 on: January 23, 2012, 06:26:39 AM »

Should this interest you, I once made a basic map for someone of the Pensacola area ...

https://www.mediafire.com/?sc0det39d11kc48
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