tph | Generate plots of service levels from GTFS feeds | Data Visualization library
kandi X-RAY | tph Summary
kandi X-RAY | tph Summary
tph.py requires Python 2.7 or greater (but not Python 3), with gtfs, numpy, and matplotlib installed. It may be possible to install these dependencies with: easy_install numpy matplotlib pytz 'python-dateutil<2.0'. matplotlib appears to require special handling and may not install cleanly with easy_install; follow the matplotlib documentation for your platform. The gtfs library should be installed from: (this is a fork of the version available on PyPI). To apply tph.py to a GTFS feed, you will need to know the stop ID for the target stop, as well as the route IDs for the routes serving that station that you want to examine. The Google GTFS Schedule Viewer (may be useful in finding stop and route IDs, or you can manually examine the feed to get the necessary information.
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Top functions reviewed by kandi - BETA
- Plots route data
- Generates contrast between two colors
- Return vehicle mode string
- Make the bar chart text
- Make the top labels on the axes
- Find the route for a given stop
- Returns the last stop name for the given trip
- Returns the last stop id for the given trip
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Community Discussions
Trending Discussions on tph
QUESTION
To make it short here are database entities:
...ANSWER
Answered 2022-Mar-27 at 12:34So here is what I've came up with.
The ClientAddress looks like this now:
QUESTION
I am having trouble with setting up a many-to-many join table with EF core if one side of the join table is a derived class in table-per-hierarchy set up.
Here's the set up:
...ANSWER
Answered 2021-Nov-16 at 12:49A navigation properties can only participate in a single relationship.
It isn't a limitation type, but a limitation by relation. For example, if you have only the Chore and Clothing classes :
QUESTION
I'm trying to migrate from using TPT (a table per subclass) to TPH (One table for all subclasses).
This is my starting point for TPT:
entities:
...ANSWER
Answered 2021-Aug-10 at 07:10EF Core uses TPH by default so I'm unsure why it is using TPT. I'm wondering if it is because my base entity is a generic type.
Generic type is one of the problems. The other is that it is not a base entity, but just base class. In order to be considered entity, there must be either DbSet, or ModelBuilder.Entity() call, or applied IEntityTypeConfiguration, or some discorevered entity navigation property (either collection or reference) referring to it - see Including types in the model.
You don't have any of these, so the model is not even TPT (common table containing common properties + single table per each derived entity containing specific properties), but some sort of a TPC (Table-Per-Class, not currently supported by EF Core), where there is no common table - all the data is in concrete tables for each derived entity.
So, in order to use TPT you need to fix both issues. Generic class cannot be used as entity type because its type is not enough to identify it (each generic instantiation is different type, typeof(Foo) != typeof(Foo)).
Start by extracting the non generic part which will serve as base entity (removed non EF Core annotations for clarity):
QUESTION
When using shared columns in an EF Core TPH setup, is it possible to access the shared column during projection?
...ANSWER
Answered 2021-Jul-06 at 14:28I can't find it documented, but in EF Core 5.x you can access the shared column using any of the derived entities having a property mapped to it, e.g. all these work
QUESTION
I have got some shapes and a bunch of( thousands of ) moving lines. Lines are created every time and they move through downward. I want to delete them if their top coords is 200. But when I have tried this the all canvas stops the moving ( other shapes and all lines stop and all lines deleted). I need help here. I want that: The lines will be deleted at certain X coords, meanwhile the creation and move of the the lines will keep going on dynamically without any process stops or closed.
...ANSWER
Answered 2021-Apr-20 at 03:28If you want to remove lines with y-coordinate > 200, you can modify move_flow() as below:
QUESTION
I would like to use a base entity common to all entities as every table should have ad ID, InsertDate and LastModifiedDate.
As per documentation I should create a BaseEntity abstract class and every entity should inheritance from this.
...ANSWER
Answered 2021-Feb-14 at 21:34This:
QUESTION
By default, EF6 would map a base abstract class and it's derived classes for Table Per Hierarchy (TPH).
EF Core no longer follows this logic and requires derived classes to be opted in. The documentation states:
By convention, types that are exposed in DbSet properties on your context are included in the model as entities. Entity types that are specified in the OnModelCreating method are also included, as are any types that are found by recursively exploring the navigation properties of other discovered entity types.
Using this approach is not too hard to follow if you have a few sub-types as you can just add them as DbSets or add a HasDiscriminator().HasValue() for each sub-type with mapping as below:
...ANSWER
Answered 2021-Jan-20 at 16:03I thought there may be a way to do this in EF Core, but found that there was not one.
I discussed with the EF team why automatic opt-in is no longer the default and they gave concerns about the stability of "assembly scanning solutions" which are probably very valid. They did not seem too interested in adding a new feature along those lines at this moment.
Here is what I came up with instead. It puts the assembly scanning in the mapping code but seems to work.
First, I created an extension method to get the derived classes (which optionally can ignore particular types by name):
QUESTION
This is how the code currently looks like.
...ANSWER
Answered 2021-Jan-08 at 16:37In the function definition/declaration you must mention the argument data type.
int cos(float angle, int precision)
QUESTION
I need to count a small subset of points in a table that are within a polygon and add the count as an attribute of the geometries.
Is there a way to add a where clause to the LEFT JOIN below to avoid having to use the temporary table? I'd prefer the temp table solution below to a CTE i think for the sake of clarity. Performance isn't really and issue for this.
ANSWER
Answered 2020-Oct-14 at 16:00First step: create a temp VIEW instead of a table. (you won't need the index, and the view will be inlined):
QUESTION
I have the following data:
ID X Y Z DATE
P1 10 53 8 OUT-99
P2 14 5 2 OUT-99
(...)
P4 14 31 1 JUN-99
P5 12 8 7 JUN-99
P6 (...)
I want my x-axis to be related to the date and my y-axis being the X values. I did the following:
...ANSWER
Answered 2020-Aug-28 at 13:26I would suggest next approach. Using some dummy data:
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You can use tph like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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