modis | ActiveModel + Redis with the aim to mimic ActiveRecord | Application Framework library

by rpush Ruby Version: v4.1.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | modis Summary

modis is a Ruby library typically used in Server, Application Framework, Ruby On Rails applications. modis has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

ActiveModel + Redis with the aim to mimic ActiveRecord where possible.

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Quality

Security

License

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Support

modis has a low active ecosystem.

It has 32 star(s) with 28 fork(s). There are 10 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 9 have been closed. On average issues are closed in 220 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of modis is v4.1.0

Quality

modis has no bugs reported.

Security

modis has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

modis is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

modis releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed modis and discovered the below as its top functions. This is intended to give you an instant insight into modis implemented functionality, and help decide if they suit your requirements.

Create a new instance of the object .
All the attributes defined by the object
Create or create or update new or create a new future
Updates the index .
Remove the index from the index
Adds an index to the index .
Checks if the record is valid .
Assign hash of attributes
Sets the id for this object .
Saves or update the record .

Get all kandi verified functions for this library.

modis Key Features

No Key Features are available at this moment for modis.

modis Examples and Code Snippets

No Code Snippets are available at this moment for modis.

Community Discussions

Trending Discussions on modis

Set available dates dynamically in bootstrap datepicker

Google Earth Engine Python API wrong MODIS NDVI value extracted

Download daily mean AOD data GEE

Shapefile and Raster with same CRS but NO output when clipping

Julia DataFrames filtering from multiple columns

R: raster() changes pixel size when converting from SpatialGridDF

How to create a feature collection after importing different shapefiles from assets in Google Earth Engine?

How to reduce the spatial resolution of an image collection in Google Earth Engine?

What do values from 100 to 200 mean in MOD10A1 NDSI snow cover layer?

rast function error with MOD09GA hdf images in R

QUESTION

Set available dates dynamically in bootstrap datepicker

Asked 2021-Jun-15 at 08:49

I have a website which displays WMS data using Leaflet, and I've successfully set up a bootstrap datepicker where you can only select a date from an array of dates, using the beforeShowDay method.

I'm now trying to set up the datepicker so that when I change map layer on the website, the bootstrap datepicker will update its available dates from the newly updated list of layer dates (for the new layer). I've attempted to update the beforeShowDay function as in this answer and also tried to destroy and reinitialise the datepicker as seen here. Neither of these approaches worked.

Below is the code I'm using to set up the datepicker:

...

ANSWER

Answered 2021-Jun-15 at 08:49

There are two approaches you can take here :

Approach 1 : //remove your current dateTimePicker and re-initialize it with the new date range

Source https://stackoverflow.com/questions/67982883

QUESTION

Google Earth Engine Python API wrong MODIS NDVI value extracted

Asked 2021-Jun-07 at 15:36

I am just getting started with the GEE Python API. I want to extract NDVI values from single pixels of a MODIS product. When I run this:

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ANSWER

Answered 2021-Jun-07 at 15:36

The official file specification states that the true values ("parameter") are obtained through the following equation:

parameter=(file data - add_offset)/scale_factor

where file data is the value in the file, and add_offset and scale_factor are defined as e.g.

Source https://stackoverflow.com/questions/67828696

QUESTION

Download daily mean AOD data GEE

Asked 2021-May-22 at 21:46

I would like to download daily mean AOD data. I already did, but I got a file with 6015 rows and only ten rows with data, the rest of raws are empty.

How can I download only the data available?

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ANSWER

Answered 2021-May-22 at 21:46

Use a notNull filter on the collection: change

Source https://stackoverflow.com/questions/67654276

QUESTION

Shapefile and Raster with same CRS but NO output when clipping

Asked 2021-May-19 at 10:30

Problem: Plot is empty, no results when clipping raster with shapefile.

I am using a shapefile with original EPSG4326 projection and a MODIS product with original sinusoidal projection. I converted both to the same projection (DesiredCRS) as you can see in the script, however when making a clip of the raster I don't get any results.

...

ANSWER

Answered 2021-May-13 at 19:36

This is but tricky to debug because you mix different packages, and you do not show(object). Anyway, here is a terra approach, showing where it would be useful to see the objects metadata; and a plot that shows the raster and vector data together.

Source https://stackoverflow.com/questions/67508188

QUESTION

Julia DataFrames filtering from multiple columns

Asked 2021-May-01 at 21:30

I want to filter a DataFrame on multiple values from different columns. I wrote the following code, but it's giving me an error, ERROR: TypeError: non-boolean (BitArray{1}) used in boolean context.

...

ANSWER

Answered 2021-Feb-16 at 09:11

You can simply concatenate the conditions with the & operator and putting each condition in brackets ().

Source https://stackoverflow.com/questions/66221308

QUESTION

R: raster() changes pixel size when converting from SpatialGridDF

Asked 2021-Apr-30 at 19:53

I am using the following MODIS DSR 1km product to do some analysis: MCD18A1.A2001001.h15v05.061.2020097222704.hdf

However, I am having trouble converting from SpatialGridDataFrame to Raster, since the pixel size changes...

Here is my script:

...

ANSWER

Answered 2021-Apr-30 at 19:53

What makes you say that pixel size changes? I only see warnings about the CRS. The warning is because the newer versions of the PROJ library do not like PROJ strings that have a datum that is not WGS84.

HDFs with sub-datasets are much easier to handle with terra.

Source https://stackoverflow.com/questions/67333734

QUESTION

How to create a feature collection after importing different shapefiles from assets in Google Earth Engine?

Asked 2021-Apr-29 at 14:36

I am importing 2 different shapefiles from assets to plot the time series chart of MODIS

but I am unable to make the feature collection out of these shapefiles

how to do that?

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ANSWER

Answered 2021-Apr-29 at 14:36

Two things need to be done here. First, add .flatten() after combining the two FeatureCollections.

This way, you make a collection of features (FeatureCollection), which is desired. Otherwise, you end up with a collection of FeatureCollections, which prompts the error.

Second, the seriesProperty needs to match the label of your FeatureCollection. In this case, 'STATE_NAME'. You can check this by adding print(both_states) to check how your new FeatureCollection looks like. I've updated the code.

Source https://stackoverflow.com/questions/67314185

QUESTION

How to reduce the spatial resolution of an image collection in Google Earth Engine?

Asked 2021-Feb-23 at 19:35

Good Day

Please may you kindly assist me with the following.

I am attempting to generate a time series of NDVI estimates using Landsat 7 and 8 for a particular region of interest (ROI). I would then like to compare these estimates against NDVI values that are acquired from the MODIS 16-day NDVI composite. While, I am familiar with how to acquire the mean Landsat NDVI values for my ROI at the Landsat spatial resolution (30 m), I would like to aggregate the pixels from this resolution to the MODIS NDVI product resolution (500 m).

I have attempted to do this in the code provided below based on an example provided at https://developers.google.com/earth-engine/guides/resample but I have been unsuccessful in my attempts. I receive the error "ndvi.reduceResolution is not a function"

Do I need to create a function for this instead and map it over the image collection or should I just specify the scale that I would like the averaging to be performed at when charting or exporting the data as a csv?

Many thanks in advance.

...

ANSWER

Answered 2021-Feb-23 at 19:35

Indeed, mapping a function over the ImageCollection will do the trick:

Source https://stackoverflow.com/questions/66333047

QUESTION

What do values from 100 to 200 mean in MOD10A1 NDSI snow cover layer?

Asked 2020-Dec-07 at 21:44

I am working with MODIS snow cover products (MOD10A1) and am unable to understand some of the values that are returned. I am trying to get % snow cover from the NDSI (normalised difference snow index) snow cover layer. The MODIS user manual states that the NDSI snow cover layer has values from 0 - 100, representing % snow cover in each pixel, and eight values between 200 and 255 that represent all other possible features/masks (cloud, missing data etc). In processing the images I am finding values between 100 and 200 and cannot find any reference to such values in the MODIS documentation.

I downloaded the MOD10A1 product as .hd files from the NSIDC.org site. I work in R, but have not been able to work with the .hd files in R, so I converted the NDSI snow cover layer to .tif files using the HEG converter program that is recommended on the MODIS NASA website. I imported the .tif files into RStudio using the raster package and used the getValues and unique functions to find the value in each pixel. The returned values are anything from 0 to 255, including values in the range 100-200.

Does anyone know what these values mean? Have they come with the product or is there an error in the file conversion? Thank you for your help.

EDIT: thanks for the suggestion. One of the exact file names is 'MOD10A1.A2015364.h25v06.006.2016182181418.hdf' and a link to the file https://drive.google.com/file/d/1HeEpIL15EC_PSBWsuGT4FJMZOPr4_oND/view?usp=sharing

I have tried using the rast function in the terra package and get the same result.

...

ANSWER

Answered 2020-Dec-07 at 21:44

You can look at this with terra.

Source https://stackoverflow.com/questions/65173151

QUESTION

rast function error with MOD09GA hdf images in R

Asked 2020-Oct-24 at 02:49

I have some MODIS images downloaded. When I try to create a SpatRaster from the hdf files, using terra rast function, it works perfectly for "MOD09A1" but it doesn´t work for "MOD09GA".

...

ANSWER

Answered 2020-Oct-24 at 02:49

The problem is that the file has subdatasets with different resolutions.

To get the file your are using

Source https://stackoverflow.com/questions/64467597

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

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