Re: [Pythoncad-developer] New kernel

[<mat...@bo...>]

Hi Yagnesh,

Those query where available  in the old version ...I whose
using it for the snap feature without know it ..:-)

We are just choose the think that are good in r37 for
porting in r38
to have the best Pythoncad ..


Regards,
Matteo

----- Original Message -----
Da : Yagnesh Desai <yn...@gm...>
A : pyt...@li...
Oggetto : Re: [Pythoncad-developer] New kernel
Data : Wed, 3 Mar 2010 14:28:15 +0530

> Were these queries not available in theR37- - - - - - - -
> - -Best regardsYagnesh DesaiSave a tree...please don't
> print this e-mail.On Tue, Mar 2, 2010 at 10:12 PM, Matteo
> Boscolo<mat...@bo...> wrote:> Hi gertwing
> ,>> We need to spatial queries like "give me all entities
> within (or outside) a> rectangle", needed for a zoom or
> select functions.> Or "give me the nearest entities from a
> given point", needed for snap and> selection functions.>
> ok>> May be you can create this structure in memory at
> startup looking of the> bounding box …>> Let me know
if
> having the bbox information in the entity table is still>
> necessary ..>>>>> I don’t’ know how to improve
this
> code>> ..>>>> The name of the layer is inside>> the pickle
> entity .. so I need to get all the layer and then ask to
> the>> unpickle elemente the name ..>>>> We can store the
> entity type>> with the name like this
‘LAYER_MAIN’ or
> “LAYER_PIPE”>> but I do not like this sort of
naming
> conversion for the entity type.>>>> Any idea?>> We
>  must do the selection based on Id's.> The id is the
> primary key and is indexed.>> When the drawing is opened
> PythonCAD retrieved all layers from the database,> this is
> done by the pyKadKernel.getEntityFromType('LAYER').> The
> layer name is presented to the user, the record id is used
> internally by> PythonCAD.> When a single layer record is
> needed the id of the record is used to query> the
> database.>> So instead of> def getEntLayer(self,
> layerName)> we use> def getEntLayer(self, layerId)>> This
> way we make full use of the database indexes and it will
> be lightning> fast.> ok>> I was thinking to load in memory
> at startup all the layer tree for fast> access to the data
> … and create a class for manage all the layers..>>>>
> Regards,>> Matteo>>>>
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