[Qgis-user] Help for crossing data with fragstats and QGIS

2017-03-20 Thread Mariana Buzzi
Good morning. I am trying to make maps in QGIS with information provided through landscape metrics obtained through the program fragstats. The input used to enter Fragstats is a sorted raster generated in QGIS; The raster is made up of two values: 1 (wells and paths) and 0 (matrix). My problem is

Re: [Qgis-user] no data in raster calculator NDVI

2016-04-07 Thread Mariana Buzzi
t;: > Hi Marina, > Please post more information on the exact calculation you are using. This > could help: > http://gis.stackexchange.com/questions/103122/how-to-generate-a-ndvi-in-qgis > Nicolas > > Le 2016-04-05 10:34, Mariana Buzzi-2 [via OSGeo.org] a écrit : > > Tha

[Qgis-user] no data in raster calculator NDVI

2016-04-05 Thread Mariana Buzzi
Hi everybody I'm doing a calculation with NDVI raster calculator. When I generate the calculation results I get a lot of pixels without values (no data). How I can do to fill those values with data? Thank you so much Regards, Mariana ___

[Qgis-user] "Unable to read max value in CSF"

2016-03-03 Thread Mariana Buzzi
Hi everybody!!! I'm trying to transform a raster file format (.gtiff) to a map file to submit to Fragstat. My downside comes when I try to do this procedure from the Raster / Conversion / Translate option. This leads me the following error "Unable to read max value in CSF" How I can fix it? I'm

[Qgis-user] Help with polygon

2016-02-16 Thread Mariana Buzzi
Hello Everybody! I have a polygon which occupies my area of study. Within it I have scanned with another polygon, a unit of landscape, the plateau. Now I must perform manual scanning other landscape unit, the coastal canyons. To avoid manually do it, I wanted to perform some operation that

[Qgis-user] Semi-automatic Classification Plugin

2016-01-29 Thread Mariana Buzzi
Hi everybody I'm trying to classify an image spot 5. For this I made a correction with TOA reflectance plugin, then I wanted to make the organization of the band Band Set module him, but could not. Nose as follow, I'm complicated and all the tutorials I've seen so far are for Landsat. Note

Re: [Qgis-user] Problems with clipper and snappin options

2016-01-18 Thread Mariana Buzzi
so > they have the same CRS. > > 2. On the snapping settings, change the snapping mode to "Advanced" > (Avanzado?). This allows you to set options for individual layers. > > Hope this helps. > > -ramon. > > > On 18 Jan 2016, at 13:17, Mariana Buzzi <ma

[Qgis-user] Problems with clipper and snappin options

2016-01-17 Thread Mariana Buzzi
Good night people! I'm making masks that correspond to landscape units (LU). The polygon corresponds to the LU called pampas. This polygon was done through the creation of a vector and scanned with mouse function of landscape features shape. As you can see, my first problem emerges at that I can

[Qgis-user] (no subject)

2015-09-21 Thread Mariana Buzzi
Hello people! How are you? I connect with you because I want to do a reclassification on a raster layer, the same information is pendient. What I want is to perform a reclassification so that the slope values quedende me as follows: 0-1 -> give them the new value of 1 1 to 2.25 -> give the new

[Qgis-user] RECLASSIFICATION ON A RASTER LAYER

2015-09-21 Thread Mariana Buzzi
-- Forwarded message -- From: Mariana Buzzi <marianabuzz...@gmail.com> Date: 2015-09-21 13:03 GMT-03:00 Subject: [Qgis-user] (no subject) To: qgis-user@lists.osgeo.org Hello people! How are you? I connect with you because I want to do a reclassification on a raster

Re: [Qgis-user] Reclass Vector

2015-08-17 Thread Mariana Buzzi
conservative=1 and conservative4 then 1 when conservative=4 and conservartive32 then 0 end After that, you can try intersection... or union. What about to work as raster? Saludos desde Perú Carlos Cerdán 2015-08-16 23:42 GMT-05:00 Mariana Buzzi marianabuzz...@gmail.com: HELLO Guys!! I want

[Qgis-user] Reclass Vector

2015-08-16 Thread Mariana Buzzi
HELLO Guys!! I want to make a demarcation of a nature reserve area, considering the wealth of species and the conservation value of each. For this purpose in the area of ​​study I designed a grilling in which I included the species richness and other gridding the area in which I included the

[Qgis-user] Supervised and Unsupervised classification

2015-07-07 Thread Mariana Buzzi
Hello People. I am writing to tell you that want to perform supervised and unsupervised classification of images SPOT 5. The aim is to to see the different land uses having the study area. How I can make these classifications with QGIS? Once you make the classification (with QGIS), I want to apply

[Qgis-user] TOA Reflectance

2015-03-12 Thread Mariana Buzzi
Hello. I'm working on an image SPOT 5. What I did first was to perform a correction TOA Reflectance (32-bit), to transform DN to TOA. When georreferenciacion apply this correction the image is lost. What I can do? I have georreferenciarla? or is there another way to do it. Many Thanks.

[Qgis-user] Cutline feature without a geometry.

2014-11-12 Thread Mariana Buzzi
Hola. Quiero cortar (con el módulo clipper) una imágen raster (SPOT 5). Para esto estoy usando una capa shp. Pero me aparece el siguiente error: Cutline feature without a geometry Cómo puedo hacer para corregirlo? Gracias. Mariana ___ Qgis-user mailing

[Qgis-user] HELP!!!

2014-08-20 Thread Mariana Buzzi
Hi there. I write because I need you please help me with this problem I have. I calculated NDVI, SAVI GreenNDVI and now I want to make a color scale pseudocolor, where the variation of these indices is shown. But I could not do it. Note that I want to use the same color scale for all indices. I'm

[Qgis-user] Asking for NDVI_Landsat 8

2014-06-18 Thread Mariana Buzzi
Dear QGIS users, I wanted to consult on the calculation of NDVI with Landsat 8. I Download a USGS Landsat image 8, so I have all the bands that make up the image. The question is: should I perform a merge with the bands 4 and 5 and then calculate the NDVI with the raster calculator? How should I

[Qgis-user] Snnapping options

2014-06-17 Thread Mariana Buzzi
Hi!!! I want to make a polygon, which should be attached to another that is coterminous. When setting options Snnapping options, and try to draw the polygon, the program tells me the following error: The feature cannot be added because it's geometry collapsed due to intersection avoidance What

[Qgis-user] HELLLPPPP

2014-06-12 Thread Mariana Buzzi
I am working with QGIS 2.0. I want to make a comparison between vegetation indices from a Landsat image (spatial resolution 30 m) and a SPOT image (spatial resolution 10 m). To do this, I need to bring resolution SPOT 30 m. I was trying to do but could not. Could you help me?. thanks very much!

[Qgis-user] (no subject)

2014-06-12 Thread Mariana Buzzi
Thanks Giovanni!!! But Multiband layers are not supported by SAGA What can I do? I am very lost ! I need do this Thanks so much ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] PLEASE!

2014-06-12 Thread Mariana Buzzi
Hello. I have a SPOT image (spatial resolution 10 m) to which we calculated the NDVI. Now I have to share this NDVI with NDVI-Landsat (30 m spatial resolution) image. The problem is that I need to change the pixel size to compare these 2 images. The truth as I don´t know haow can I do this. The

Re: [Qgis-user] GIS.lab Web 0.4 demo

2014-06-11 Thread Mariana Buzzi
Hello. I'm trying to make a comparison of vegetation indices from a SPOT image (spatial resolution 10 m) and Landsat (30 m spatial resolution). To make this work I have to change the pixel size for the 2 images have the same resolution. How I can do this? I'm new to this and the truth is much more

Re: [Qgis-user] TAB file export

2014-06-11 Thread Mariana Buzzi
Hello. I'm trying to make a comparison of vegetation indices from a SPOT image (spatial resolution 10 m) and Landsat (30 m spatial resolution). To make this work I have to change the pixel size for the 2 images have the same resolution. How I can do this? I'm new to this and the truth is much more