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ZGM Mapmaking Tutorial


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Thread Starter
ZeroG
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#1

Posted 14 November 2010 - 15:23

Hello guys!

I will post more and more parts of the tutorial in the same speed as I create my map, making it a kind of mapmaking BLOG :)

Feel free to comment, feel motivated and be patient :)

PART 1 begins with fetching real life DEM and ends with the implementation of the satellite image as background in VISITOR 3.

PART 2 deals with the usage of shapefiles and placement of large forests.



ZGM MAP MAKING TUTORIAL PART 1 & 2

Edited by ZeroG, 06 January 2011 - 21:03.

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Real world mapmaking tutorial / Mapmaking resources / A2 Visitor Objects template library and toolset / A3 Visitor Objects template library and toolset

Beton
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#2

Posted 14 November 2010 - 17:13

Wow, very nice tut.

This should make the first steps much easier. Should be put into the resourcelinks.

shezan74
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#3

Posted 14 November 2010 - 17:22

Gooooood work! ;)

It's time to move to Global Mapper :D

Edited by shezan74, 14 November 2010 - 17:24.


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ZeroG
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#4

Posted 14 November 2010 - 18:07

Thanks, folks!

Next part will concern the usage of WORLD TOOLS ;)
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Kenwort
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#5

Posted 14 November 2010 - 18:36

Thanks for the great tut! Just started learning map making! :)

Gnome_AS
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#6

Posted 14 November 2010 - 19:19

Excellent tutorial ZeroG! Very well written and easy to follow. Looks like your GM process is a few steps shorter than my microdem, might have to try that out sometime. :)

Well done, looking forward to your world tools info! Haven't had much time to play around with that yet, really like to see what you've come up with there.

Thread Starter
ZeroG
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#7

Posted 14 November 2010 - 21:06

Excellent tutorial ZeroG! Very well written and easy to follow. Looks like your GM process is a few steps shorter than my microdem, might have to try that out sometime. :)

Well done, looking forward to your world tools info! Haven't had much time to play around with that yet, really like to see what you've come up with there.


Thanks Gnome :) Yea, Global mapper is far better than microdem..more precise and user friendly imho.

Unluckily, I have to say that I am short on time next two weeks..but after that I'll continue with the tut.
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stormridersp
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#8

Posted 14 November 2010 - 21:28

GREAT JOB!
Thank you!

bushlurker
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#9

Posted 14 November 2010 - 22:48

Hi ZeroG!

Brilliant tutorial!!!
Covers all the bases - including the "2 background images at once" one in Visitor... well done...
This will really help beginners come to grips with all this crazy stuff thats done before you even get to the Visitor stage!... Excellent!

Theres one small step I usually include in my workflow which is worth mentioning - mainly coz you're using Global Mapper and it is great for this...

"Rectifying".....

Directly after you've downloaded, stitched and finalised your Google Satellite image,,,

I wrote a post about this just recently, so I'll paste it in here...

You should be able to reproject to any datum plus rectify in most GIS programs... Global Mapper for sure, also probably MicroDEM - which is free. I haven't much experience with either, since I use ArcGIS - but that's heavyweight software and totally unnecessary for such a simple job - I just use it 'cause I got bought a copy a few years back for work, so I actually vaguely understand some bits of it...

Theres a Global Mapper demo available - I think you download the demo, then ask them for a "trial key" which gets you fully functional including exports... After that (if I remember correctly.....)

Load DEM - if it's already georeferenced it'll go to its real coordinates - if it's already in a projection it'll be in that...

Go change the overall projection - "UTM WGS 1984 zone xx" is probably what you want

Load the sat image - if its carrying a projection it'll be forced to display in the new one, if it isn't - it'll also be displayed in the new projection... it probably won't be georeferenced so it'll just be dumped "somewhere in the world" (Fake coordinates and display option)... You probably won't see both images on screen at once at this point - they're probably literally on opposite sides of the world... don't panic!

Re-rectify - you'll see the DEM and the image gridded and side by side - then you just zoom in and start laying control points - click a precise spot on the DEM - then the exact same spot on the image... "this spot on A corresponds with this spot on B"... Sometimes you can get away with points in all 4 corners and a couple in the middle - other times you might find yourself laying hundreds of control points... (do the corners first and take a look - just in case that's really all you need - laying unnecessary points can make things worse instead of better - fortunately you can delete point pairs anytime)... basically it'll "rubbersheet" the image to correspond precisely with the DEM.
When you're done and happy - use the vector shapes tool and make a precisely square outline - place this so it frames the area you want...
Choose "Export" and choose to "use the vector shape to define the output boundaries" - it'll output bitmaps of your sat and your DEM which are now precisely overlaid - using the vector shape like a "cookiecutter"...

(only the red bits are directly relevant)...

Same deal as you describe - right down to the using a vector shape as a cookiecutter to slice out matching layers of DEM, Open Map, etc... using Global Mapper you can actually physically "rubbersheet" that Google image so it perfectly matches all your other layers - then cookiecutter it out too - then you have an actual useable and perfectly lined up Google Sat_lco image...


B

Edited by Bushlurker, 15 November 2010 - 02:30.

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Robster
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#10

Posted 14 November 2010 - 23:04

Gooooood work! ;)

It's time to move to Global Mapper :D


gm RULZ !!!!

Helo
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#11

Posted 15 November 2010 - 02:00

Thank you very much for that work you ve done , ZeroG.

Thread Starter
ZeroG
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#12

Posted 15 November 2010 - 06:47

Thanks B! I will include your tips when I come to the satimage section :)
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shezan74
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#13

Posted 15 November 2010 - 10:36

gm RULZ !!!!


My spare time is free so i'm making tools and maps for free...
i'm not sure i want pay 349 USD for making free maps with GM :eek:

foxhound
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#14

Posted 15 November 2010 - 11:33

I love tutorials :D


Release frontpaged on the Armaholic homepage.

Posted Image
ZGM Map making tutorial part I



I also added a link to part I of your tutorials to our Arma editing FAQ.

(something I need to re-work as well, its a bit messy in there :D )
Visit Armaholic.com | Visit Carriercommandaholic.com
Posted Image
Public FTP available, just check the Armaholic.com FAQ.

HMM........wonder what it is huh?

konrad1
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#15

Posted 15 November 2010 - 13:19

nice tut can you also one how to place object rees textures etc.
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Tupolov
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#16

Posted 15 November 2010 - 13:57

Good tut, but as others found you can't export from GM without a license (will try asking for a trial license...)

Similarly, you can't get beyond zoom level 12 with the Universal Map Download Tool unless you buy it.

Would be great if someone has a similar tutorial but with free tools?

Thanks though! The tut is clear and shows the steps necessary.

Thread Starter
ZeroG
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#17

Posted 15 November 2010 - 14:24

Good tut, but as others found you can't export from GM without a license (will try asking for a trial license...)

Similarly, you can't get beyond zoom level 12 with the Universal Map Download Tool unless you buy it.

Would be great if someone has a similar tutorial but with free tools?

Thanks though! The tut is clear and shows the steps necessary.


As far as I know, Microdem is a similar program...it is just not so easy to use as Global Mapper.

As I said, you dont really need a too high detailed map for background mask in Visitor 3 as you cannot place so many objects as in RL! It is just to get an Idea where every road is and woods are located in RL. I guess slopes, forests and roads are the only things you will really recognize from an area you are living in, as the available buildings are not the same as in anyones home town.

For the satmap to be drawn in game, you rather should paste on your own textures onto the low detail RL-map with programs like PS, as even 18x zoom is not high enough to make it goodlooking in game!

All you need in the end is the near 100% match between satellite background mask and the heightmap.

Have you checked: maybe there are older versions of GM available that are cheaper?
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#18

Posted 15 November 2010 - 14:26

ZeroG: Very nice tutorial. Good work and thanks. :)

Konrad1: If you read what OP says you see he makes the tutorials as he makes the map which should mean what you ask for comes later. Patience please. ;)
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Nielsen
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#19

Posted 15 November 2010 - 17:07

This is a great initiative!
Something like this might actually inspire people like me to delve into mapmaking.

Two thumbs up!

stormridersp
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#20

Posted 15 November 2010 - 19:49

I have one question:

Following your tutorial part I, I figure that we´ve created an 1:1 map.
But what if I want to create instead, an 1:2 or 1:3 map, that means, 10km ingame represents 20km in reality. What should I do?

Edited by stormridersp, 15 November 2010 - 20:30.
not fixed