This module helped further show the information that can be incorporated into GIS models which I found interesting. I think adding in things like the nature reserve boundary is really useful for looking for patterns, eg. in abundance or animal behaviour, or knowing how accurate points are - e.g. if the animals are restricted to that area but location points or estimates are outside of that area.
I struggled with the vague instructions about getting the reserve boundary map into my project but I found a comment on this discussion board that helped me figure it out I’m also curious what the ‘fine grain vector data’ is telling us, I’ve included the lines and points that it added to my map but I’m not sure what they represent?
This module allowed me to better understand the concepts of Raster. In addition to being able to learn to properly visualize my data according to the information that I want to observe or even that I want to present in some work. And to be able to better know the characteristics of the different layers.
In this module I reinforced my knowledge about raster layers and how to visualize them in QGIS. I had never thought about the uncertainties of the layers, that is something that caught my attention and what I have to investigate more. As an exercise, I used my own data on the sites where different Chihuahua predators have preyed on cattle (shape points). I also added my country (Mexico) and the northwest municipalities as shape layers. As a raster coverage I used the reclassified vegetation types. The problem is that I could not change the colors to make it more striking or easier to differentiate. Does anyone know how to reclassify the colors of a raster? I tried to make it as if it was a shape, but it failed.
I think you are the only one who managed to change the color of the raster cells. Without a doubt, it is something quite striking and that makes a map easy to understand. I congratulate you. I tried to do it but failed. Could you tell me how you did it?
I’m now clear on vector vs raster but still a bit fuzzy on certain splits in continuous vs thematic. I am sure that will be resolved with more experience. It was interesting to play around with the presentation and ordering of layers. I saw some nice examples from others and will take more time this weekend to play around with it.
I really like the way you were able to modify the landcover. I wanted to try to do the same but was afraid of messing up the file. I’ll go back this weekend and be bolder in trying out options. Thanks for the inspiration.
Hi Jorge,
Thanks for the kind words. How I was able to change the color of the raster cells the doing the following steps:
1)Double-click the on the layer that says “Band 1:VNM_cov”, at least that’s what its say on my screen.
2)In the symbology tab towards the bottom is a little black box right next to colorize (it’s kinda hard to see), but I clicked on colorize and a check mark appeared in the box.
3) Then the box that is to the right of colorize is where you can change the color, the pull down tab allows you to play with different colors, by scrolling around and clicking inside the wheel and on the side.
I hope those instructions were clear and it works for you!
Take Care,
Helina
Hi Gabriela!
Yes, I wasn’t a fan on the grayscale, so that’s why I changed mine.Thanks for looking over my map. How I was able to change the color of the raster cells the doing the following steps:
1)Double-click the on the layer that says “Band 1:VNM_cov”
2)In the symbology tab towards the bottom is a little black box right next to colorize (it’s kinda hard to see), but I clicked on colorize and a check mark appeared in the box.
3) Then the box that is to the right of colorize is where you can change the color, the pull down tab allows you to play with different colors, by scrolling around and clicking inside the wheel and on the side.
I hope those instructions were clear and it works for you!
Take Care,
Helina
Thank you very much Ntokozo. your suggestion are well received. I’ll re-order the layers and see the effect. Also The Che Tao suggestion. please keep it up!! they are valuable to me. good day sis!!
with regards,
i think the coolest thing in this module is that i found out the website DIVA-GIS where we can download shape files of different countries. at first i was so confuse on how my senior get the file for us to map out for my final year project and now i know where can i get it from! hahaha! this is fun!
My biggest challange is becoming familiar with new file types. I think I am beginning to make the link between types of data, the file tpe they are held in and the way they must be added as layers (vector vs raster)
After last weeks lesson, this was my next big question, what’s the difference between vector and raster, so it was really good to be able to get to load and manage an array of different layers. However that was also what took me a while to get used to, keeping track of what was loaded, determining what they showed and how to order the layers well to be able to clearly see the data.
Was also glad to see that, although there wasn’t a filter to stop raster files showing up when opening the vector loading dialogue, there was validation to show that you’re trying to load a raster instead of a vector.
After learning this module, i understand the difference between vector and raster. My challenge for this module is to understand the different file type and how should the layers be arrange so we have a better visual about the data and presenting it
The instructions were easy to follow however the challenge is on knowing the order of the layers hence the differences in our maps. This can be further clarified by understanding the different types of layers
I’m also curious what the ‘fine grain vector data’ is telling us, I’ve included the lines and points that it added to my map but I’m not sure what they represent?
