projection

问题 In recent days, I have visualized my ncep reanalysis data using Basemap. It is found that only half data appears when using Basemap(projection="cyl",lon_0=0.0,lat_0=0.0, resolution="c") , but the whole data occurs when using Basemap(projection="cyl",lon_0=180.0,lat_0=0.0, resolution="c") . Furthermore, I changes the projection, but still set the central longitude to 0 degree like Basemap(projection="hammer",lon_0=0.0,lat_0=0.0, resolution="c"), but the whole data. The whole data occurs. what

问题 I am trying to make a Choropleth map using matplotlib and cartopy for which I obviously need to plot a shapefile first. However, I did not manage to do so, even though a similar question has been asked here and here. I suspect either the projection or the bounds to be misspecified. My shapefile has the projection PROJCS["WGS_1984_UTM_Zone_32Nz", GEOGCS["GCS_WGS_1984", DATUM["WGS_1984", SPHEROID["WGS_84",6378137,298.257223563]], PRIMEM["Greenwich",0], UNIT["Degree",0.017453292519943295]],

问题 Here's my (simplified) model: Ticket -> Customer Callback (s) I have my Ticket mapped so that when it's loaded, the Callbacks are as well. base.HasMany<TechSupportCallback>(x => x.Callbacks) .KeyColumn(Fields.TRACKED_ITEM_ID) .Not.LazyLoad() .Inverse() .Cache.ReadWrite(); This is not lazy loading because otherwise I'll get 'no session to load entities' when the web service tries to serialize (and load) the proxy. (Using repositories to fetch data.) It's also bi-directional .. (in the

问题 I'm trying to implement Interface-based Projection but I cannot make it work with my custom type column. Below example of what I'm trying to do: Repository: @Query(value = "SELECT customType from TABLE", nativeQuery = true) List<TestClass> getResults(); Interface projection: public interface TestClass { @Convert(converter = MyCustomTypeConverter.class) MyCustomType getCustomType(); } Converter: @Converter public class MyCustomTypeConverter implements AttributeConverter<MyCustomType, String> {

问题 I have case classes and for each case class T I define an Entity[T] implicit. These instances define an Id type that is specific to each T. I then define an abstract Table[T] class with a retrieve method that takes an identifier of the Id type defined in T through a type projection... But it does not work, I get type mismatches: scalac generic-type-projection.scala generic-type-projection.scala:31: error: type mismatch; found : id.type (with underlying type Entity[T]#Id) required: _5.Id where

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I noticed most resources either assume you know a lot already or assume you know math of professional level or assume you're going to find other resources to fill gaps. Is there a resource that takes someone without already a knowledge on view matrices in graphics and takes them to understanding fully how to set

问题 I have a grid I have converted from GeoTIFFs to a shapefile. I would like to convert and export the shapefile as a GeoPackage and change the projection so it uses the British National Grid as the geographic coordinate system when opened in a GIS. However this only seems to work using sp and not sf (which does not appear to retain aspects like the datum). This is a problem as I would like to export GeoPackages containing multiple layers which you can only currently do in sf and not sp . Am I

问题 I am finding some unexpected behavior when using a projection in a LINQ to SQL query using a Func. Example code will explain better than words. A basic L2S lambda query using projection: db.Entities.Select(e => new DTO(e.Value)); It translates to the desired SQL: SELECT [t1].[Value] FROM [Entity] AS [t1] However, when the projection is put into a Func like this: Func<Entity, DTO> ToDTO = (e) => new DTO(e.Value); And called like this: db.Entities.Select(e => ToDTO(e)); The SQL is now pulling

问题 I'm trying to build a smaller SQL, to avoid the "select * from A" that is being build by default for hibernate Criteria. If I use simple fields (no relation), through "Transformers", I have can manage to have this SQL: select description, weight from Dog; Hi, I have this Entity: @Entity public class Dog { Long id; String description; Double weight; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "person_id", nullable = false) Person owner; } @Entity public class Person { Long id; String

问题 Is there a way to project fields that may or may not exist? Such as having it defined as null or undefined? For instance, I am doing a query with: $project: { date: 1, name: "$person.name", age: "$person.age" } Not all documents are guaranteed to have a $person.age, but instead of the ones without an age being returned as { date: Today, name: "Bill" }, I would like it to say { date: Today, name: "Bill", age: null }. Or something similar. Is there a better way than just iterating through the