[Qgis-user] QGIS and historical battle

[Lazanu Ciprian-Cătălin via QGIS-User]

Hello,
I want to start a project with a great challenge:

  *   first an introduction - a battle between two armies in the medieval 
period. we have a few pieces of information regarding this battle: the number 
of soldiers from both armies (army A with ~ 25.000/30.000 soldiers and army B 
between 50.000 and 100.000 - medieval chronicles have different numbers) and 
incomplete information regarding the exact place of the battle. all we know is 
that it was on a river valley and the main battle was regarding controlling a 
bridge at the confluence of 2 rivers. another clue is that the battle was at a 
short distance from an important city (name Town) which is located in that 
river valley. Army B was marching on the river valley to take the city Town and 
met army A at a short distance from the city. The battle was around a bridge on 
the river. That is all we know. (Army A won that battle).
  *   what I want ... I want to see if I could locate that battle (so l could 
make some archaeological investigation after that) using some simulators ... 
for example: to see how long the marching formation of army B (50.000 to 
80.000/90.000 soldiers) was to see the distribution on the field/road to city 
Town.
  *   another clue ... we know that the commander of army A (the defender) had 
a small base fortification from where he could see and command the army and 
make orders. such a place is visible now on a hill from where you could see at 
15 - 20 km down the river valley. (I know that l could use visibility 
analysis). On the ground, the surface is no visible traces of that battle.

This battle is an important historical moment in the history of my country and 
has an important local value.
So, is there anything in QGIS or other GIS software something to work so l can 
make a simulation or something like that regarding this kind of activity?
Thank you in advance ... and any suggestions could be sent via email in private 
too.
Ciprian
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[Qgis-user] Raster

[Lazanu Ciprian-Cătălin via Qgis-user]

Hello,
I georeferenced three maps ... all good, quite easy by using points from map 
canvas. When my map was ready it has a black border (image 1). This is solved 
by ~Custom transparency options~, and a black border disappears. But this 
solution is just temporarily, because if I close and reopen ... that raster has 
again a black border. I want to merge the three maps in one, but it does with a 
black border between maps.
A solution to this annoying problem?

Thank you

https://drive.google.com/drive/folders/1qM1_TeFUng9-xyRXRQCuMrEMwxFeJV7n?usp=sharing
 images
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[Qgis-user] Vector marker

[Lazanu Ciprian-Cătălin via Qgis-user]

Hello,
I want to make a map with all the churches, monasteries and museums in my 
county. For each category, l create a shapefile. As a marker symbol l don't 
find any image/picture which could be a symbol of a church or cultural 
building. For my map l want to look historic/vintage so l want the markers not 
to be a dot or star s.a.
How could l do it?
Thank you
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[Qgis-user] Vertices

[Lazanu Ciprian-Cătălin via Qgis-user]

Hello,
I need help ...
I want to create a layer with a polygon ... with 5 vertices. I want that 
vertices to be shown on my layer by their number 1,2,3,4,5 and after that to 
extract their coord and put them in a table by id (1,2,3,4,5,) and x, y - I use 
Stereographic - STEREO70 PROJECTION.
I have a picture to show how l want to see that polygon on my layer and after 
that l could print it like that.
Thank you
Cipanul

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