كل ما يخص نظم المعلومات الجغرافية (GIS) وأي شخص مهتم في مجال علم نظم المعلومات الجغرافية وخاصةً برامج ArcGIS يستفيد من هذا الموقع، هناك الكثير من البرنامج التي يتم شرح طريقة تنزيلها بالإضافة الى مقالات كثيرة في نظم المعلومات الجغرافية، تستطيع من خلالها التعلم وتبادل العلم والمعرفة في مجال هذا العلم ، يمكن لأي شخص متابعة هذا الموقع ومتابعة أي مقال جديد لحظة بلحظة، هناك دورات مجانية وبمستويات متعددة لتعلم على برامج ArcGIS وأي برامج تهتم في GIS.
Creates a raster of flow
direction from each cell to its downslope neighbor, or neighbors, using D8,
Multiple Flow Direction (MFD) or D-Infinity (DINF) methods.
ينشئ نقطية لاتجاه التدفق من كل خلية إلى جوارها
منحدرًا إلى أسفل ، أو جيرانها ، باستخدام أساليب D8 أو Multi Flow Direction (MFD) أو D-Infinity
(DINF).
1.Input surface raster أدخل البيانات
النقطية للسطح
The input raster
representing a continuous surface.
المدخلات النقطية التي تمثل سطحًا مستمرًا.
Output flow direction raster
The output raster that shows the flow direction from each cell to its
downslope neighbor(s) using D8, Multiple Flow Direction (MFD) or D-Infinity
(DINF) methods.
This output is of integer type.
Force all edge cells to flow
outward (optional)
Specifies if edge cells will always flow outward or follow normal flow
rules.
·Unchecked—If the maximum drop on the inside of an edge cell is greater
than zero, the flow direction will be determined as usual; otherwise, the flow
direction will be toward the edge. Cells that should flow from the edge of the
surface raster inward will do so. This is the default.
·Checked—All cells at the edge of the surface raster will flow outward from
the surface raster.
Output drop raster (optional)
An optional output drop raster.
The drop raster returns the ratio of the maximum change in elevation from
each cell along the direction of flow to the path length between centers of
cells, expressed in percentages.
This output is of floating-point type.
Flow direction type (optional)
Specifies the type of flow method to use while computing flow directions.
·D8—Assign a flow direction based on the D8 flow method. This method
assigns flow direction to the steepest downslope neighbor. This is the default.
·MFD—Assign a flow direction based on the MFD flow method. This method
assigns multiple flow directions towards all downslope neighbors.
·DINF—Assign a flow direction based on the D-Infinity flow method using the
steepest slope of a triangular facet.
2.Output flow direction raster البيانات
النقطية لاتجاه التدفق المخرجة
The output raster that
shows the flow direction from each cell to its downslope neighbor(s) using D8,
Multiple Flow Direction (MFD) or D-Infinity (DINF) methods.
This output is of
integer type.
النقطية الناتجة التي تُظهر اتجاه التدفق من كل
خلية إلى جارتها (جاراتها) منحدرًا باستخدام D8 أو
طرق التدفق المتعدد (MFD) أو D-Infinity (DINF).
هذا الإخراج من نوع عدد صحيح.
Force all edge cells to flow outward
(optional)
Specifies if edge cells will always flow outward or follow normal flow
rules.
·Unchecked—If the maximum drop on the inside of an edge cell is greater
than zero, the flow direction will be determined as usual; otherwise, the flow
direction will be toward the edge. Cells that should flow from the edge of the
surface raster inward will do so. This is the default.
·Checked—All cells at the edge of the surface raster will flow outward from
the surface raster.
Output drop raster (optional)
An optional output drop raster.
The drop raster returns the ratio of the maximum change in elevation from
each cell along the direction of flow to the path length between centers of
cells, expressed in percentages.
This output is of floating-point type.
Flow direction type (optional)
Specifies the type of flow method to use while computing flow directions.
·D8—Assign a flow direction based on the D8 flow method. This method
assigns flow direction to the steepest downslope neighbor. This is the default.
·MFD—Assign a flow direction based on the MFD flow method. This method
assigns multiple flow directions towards all downslope neighbors.
·DINF—Assign a flow direction based on the D-Infinity flow method using the
steepest slope of a triangular facet.
3.Force all edge cells to flow outward (optional) إجبار جميع خلايا الحافة على التدفق للخارج (اختياري)
Specifies if edge cells
will always flow outward or follow normal flow rules.
·Unchecked—If the maximum drop on the inside of an edge cell is
greater than zero, the flow direction will be determined as usual; otherwise,
the flow direction will be toward the edge. Cells that should flow from the
edge of the surface raster inward will do so. This is the default.
·Checked—All cells at the edge of the surface raster will flow
outward from the surface raster.
تحدد ما إذا كانت خلايا الحافة ستتدفق دائمًا إلى
الخارج أو تتبع قواعد التدفق العادية.
• غير محدد - إذا كان
الحد الأقصى للانخفاض داخل خلية حافة أكبر من الصفر ، فسيتم تحديد اتجاه التدفق
كالمعتاد ؛ خلاف ذلك ، سيكون اتجاه التدفق نحو الحافة. الخلايا التي يجب أن تتدفق
من حافة السطح النقطي إلى الداخل ستفعل ذلك. هذا هو الافتراضي.
• تم التحديد - ستتدفق
جميع الخلايا الموجودة على حافة البيانات النقطية السطحية إلى الخارج من خطوط
المسح السطحي.
Output drop raster (optional)
An optional output drop raster.
The drop raster returns the ratio of the maximum change in elevation from
each cell along the direction of flow to the path length between centers of
cells, expressed in percentages.
This output is of floating-point type.
Flow direction type (optional)
Specifies the type of flow method to use while computing flow directions.
·D8—Assign a flow direction based on the D8 flow method. This method
assigns flow direction to the steepest downslope neighbor. This is the default.
·MFD—Assign a flow direction based on the MFD flow method. This method
assigns multiple flow directions towards all downslope neighbors.
·DINF—Assign a flow direction based on the D-Infinity flow method using the
steepest slope of a triangular facet.
4.Output drop raster (optional) البيانات
النقطية المسقطة الناتجة (اختياري)
An optional output drop
raster.
The drop raster returns
the ratio of the maximum change in elevation from each cell along the direction
of flow to the path length between centers of cells, expressed in percentages.
This output is of
floating-point type.
نقطية اختيارية لإسقاط الإخراج.
تُرجع نقطية الإسقاط نسبة الحد الأقصى للتغيير في الارتفاع
من كل خلية على طول اتجاه التدفق إلى طول المسار بين مراكز الخلايا ، معبرًا عنها
بالنسب المئوية.
هذا الإخراج من نوع النقطة العشرية.
Flow direction type (optional)
Specifies the type of flow method to use while computing flow directions.
·D8—Assign a flow direction based on the D8 flow method. This method
assigns flow direction to the steepest downslope neighbor. This is the default.
·MFD—Assign a flow direction based on the MFD flow method. This method
assigns multiple flow directions towards all downslope neighbors.
·DINF—Assign a flow direction based on the D-Infinity flow method using the
steepest slope of a triangular facet.
5.Flow direction type (optional) نوع
اتجاه التدفق (اختياري)
Specifies the type of
flow method to use while computing flow directions.
·D8—Assign a flow direction based on the D8 flow method. This
method assigns flow direction to the steepest downslope neighbor. This is the
default.
·MFD—Assign a flow direction based on the MFD flow method. This
method assigns multiple flow directions towards all downslope neighbors.
·DINF—Assign a flow direction based on the D-Infinity flow method
using the steepest slope of a triangular facet.
يحدد نوع طريقة التدفق التي سيتم استخدامها أثناء
حساب اتجاهات التدفق.
• D8 —
تعيين اتجاه تدفق بناءً على طريقة التدفق D8. تحدد
هذه الطريقة اتجاه التدفق لأشد جوار منحدر انحدار. هذا هو الافتراضي.
• MFD -
تعيين اتجاه التدفق بناءً على طريقة التدفق MFD. تحدد
هذه الطريقة اتجاهات تدفق متعددة تجاه جميع جيران منحدر.
• DINF - قم
بتعيين اتجاه تدفق بناءً على طريقة تدفق D-Infinity
باستخدام المنحدر الأكثر انحدارًا لوجه مثلث.
Computes, for each cell,
the horizontal or vertical component of downslope distance, following the flow
path(s), to cell(s) on a stream into which they flow. In case of multiple flow
paths, minimum, weighted mean, or maximum flow distance can be computed.
If an optional flow
direction raster is provided, the down slope direction(s) will be limited to
those defined by the input flow direction raster.
يحسب ، لكل خلية ، المكون الأفقي أو الرأسي لمسافة
المنحدر ، باتباع مسار (مسارات) التدفق ، إلى الخلية (الخلايا) الموجودة في التدفق
الذي تتدفق فيه. في حالة وجود مسارات تدفق متعددة ، يمكن حساب الحد الأدنى أو
المتوسط المرجح أو الحد الأقصى لمسافة التدفق.
إذا تم توفير خط نقطي اختياري لاتجاه التدفق ،
فسيقتصر اتجاه (اتجاهات) المنحدر السفلي على تلك المحددة بواسطة خطوط اتجاه تدفق
الإدخال.
Input stream raster
An input stream raster that represents a linear stream network.
Input surface raster
The input raster representing a continuous surface.
Output raster
The output flow distance raster.
Input flow direction raster
(optional)
The input raster that shows the direction of flow out of each cell.
When a flow direction raster is provided, the down slope direction(s) will
be limited to those defined by the input flow directions.
The flow direction raster can be created using the Flow Direction tool.
The flow direction raster can be created using D8, Multiple Flow Direction
(MFD) and D-Infinity methods. Use the Input flow direction type parameter to
specify which method was used when the flow direction raster was created.
Distance type (optional)
Determines if the vertical or horizontal component of flow distance is
calculated.
·VERTICAL—The flow distance calculations represent the vertical component
of flow distance, following the flow path, from each cell in the domain to
cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
1.Input
stream raster أدخل التيار من البيانات النقطية
An input stream raster
that represents a linear stream network.
أدخل نقطية التدفق التي تمثل شبكة دفق خطي.
Input surface raster
The input raster representing a continuous surface.
Output raster
The output flow distance raster.
Input flow direction raster
(optional)
The input raster that shows the direction of flow out of each cell.
When a flow direction raster is provided, the down slope direction(s) will
be limited to those defined by the input flow directions.
The flow direction raster can be created using the Flow Direction tool.
The flow direction raster can be created using D8, Multiple Flow Direction
(MFD) and D-Infinity methods. Use the Input flow direction type parameter to
specify which method was used when the flow direction raster was created.
Distance type (optional)
Determines if the vertical or horizontal component of flow distance is
calculated.
·VERTICAL—The flow distance calculations represent the vertical component
of flow distance, following the flow path, from each cell in the domain to
cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
2.Input
surface raster أدخل البيانات النقطية الخاصة بالسطح
The input raster
representing a continuous surface.
المدخلات النقطية التي تمثل سطحًا مستمرًا.
Output raster
The output flow distance raster.
Input flow direction raster
(optional)
The input raster that shows the direction of flow out of each cell.
When a flow direction raster is provided, the down slope direction(s) will
be limited to those defined by the input flow directions.
The flow direction raster can be created using the Flow Direction tool.
The flow direction raster can be created using D8, Multiple Flow Direction
(MFD) and D-Infinity methods. Use the Input flow direction type parameter to
specify which method was used when the flow direction raster was created.
Distance type (optional)
Determines if the vertical or horizontal component of flow distance is
calculated.
·VERTICAL—The flow distance calculations represent the vertical component
of flow distance, following the flow path, from each cell in the domain to
cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
3.Output
raster البيانات النقطية المخرجة
The output flow distance
raster.
مسافة تدفق النقطية المخرجة.
Input flow direction raster
(optional)
The input raster that shows the direction of flow out of each cell.
When a flow direction raster is provided, the down slope direction(s) will
be limited to those defined by the input flow directions.
The flow direction raster can be created using the Flow Direction tool.
The flow direction raster can be created using D8, Multiple Flow Direction
(MFD) and D-Infinity methods. Use the Input flow direction type parameter to
specify which method was used when the flow direction raster was created.
Distance type (optional)
Determines if the vertical or horizontal component of flow distance is
calculated.
·VERTICAL—The flow distance calculations represent the vertical component
of flow distance, following the flow path, from each cell in the domain to
cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
4.Input
flow direction raster (optional) أدخل البيانات النقطية
الخاصة في اتجاه التدفق (اختياري)
The input raster that
shows the direction of flow out of each cell.
When a flow direction
raster is provided, the down slope direction(s) will be limited to those
defined by the input flow directions.
The flow direction
raster can be created using the Flow Direction tool.
The flow direction
raster can be created using D8, Multiple Flow Direction (MFD) and D-Infinity
methods. Use the Input flow direction type parameter to specify which method
was used when the flow direction raster was created.
الإدخال النقطي الذي يوضح اتجاه التدفق خارج كل
خلية.
عندما يتم توفير خطوط اتجاه التدفق ، سيقتصر اتجاه
(اتجاهات) المنحدر السفلي على تلك التي تحددها اتجاهات تدفق الإدخال.
يمكن إنشاء خطوط اتجاه التدفق باستخدام أداة Flow Direction.
يمكن إنشاء خطوط اتجاه التدفق باستخدام طرق D8
واتجاه التدفق المتعدد (MFD) وطرق D-Infinity. استخدم معلمة نوع اتجاه تدفق الإدخال لتحديد الطريقة التي تم
استخدامها عند إنشاء خطوط اتجاه التدفق.
Distance type (optional)
Determines if the vertical or horizontal component of flow distance is
calculated.
·VERTICAL—The flow distance calculations represent the vertical component
of flow distance, following the flow path, from each cell in the domain to
cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
5.Distance
type (optional) نوع المسافة (اختياري)
Determines if the
vertical or horizontal component of flow distance is calculated.
·VERTICAL—The flow distance calculations represent the vertical
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow. This is the default.
·HORIZONTAL—The flow distance calculations represent the horizontal
component of flow distance, following the flow path, from each cell in the
domain to cell(s) on the stream into which they flow.
يحدد ما إذا كان المكون الرأسي أو الأفقي لمسافة
التدفق محسوبًا.
• عمودي - تمثل حسابات
مسافة التدفق المكون الرأسي لمسافة التدفق ، بعد مسار التدفق ، من كل خلية في
المجال إلى الخلية (الخلايا) على الدفق الذي تتدفق فيه. هذا هو الافتراضي.
• أفقي - تمثل حسابات
مسافة التدفق المكون الأفقي لمسافة التدفق ، بعد مسار التدفق ، من كل خلية في
المجال إلى الخلية (الخلايا) على الدفق الذي تتدفق فيه.
Flow direction type (optional)
The input flow direction raster can be of type D8, Multi Flow Direction
(MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the default.
·MFD—The input flow direction raster is of type Multi Flow Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
6.Flow
direction type (optional) نوع اتجاه التدفق (اختياري)
The input flow direction
raster can be of type D8, Multi Flow Direction (MFD) or D-Infinity (DINF).
·D8—The input flow direction raster is of type D8. This is the
default.
·MFD—The input flow direction raster is of type Multi Flow
Direction (MFD).
·DINF—The input flow direction raster is of type D-Infinity (DINF).
يمكن أن تكون البيانات النقطية لاتجاه تدفق
الإدخال من النوع D8 أو Multi
Flow Direction (MFD) أو D-Infinity (DINF).
• D8 —
البيانات النقطية لاتجاه تدفق الإدخال هي من النوع D8. هذا
هو الافتراضي.
• MFD -
خطوط اتجاه تدفق الدخل من النوع Multi Flow Direction (MFD).
• DINF -
البيانات النقطية لاتجاه تدفق الإدخال هي من النوع D-Infinity (DINF).
Statistics Type (optional)
Determines the statistics type used to compute flow distance over multiple
flow paths. If there is only a single flow path from each cell to a cell on the
stream, all statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of flow
distance is computed. Flow proportion from a cell to its downstream neighboring
cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is computed.
7.Statistics
Type (optional) نوع الإحصاء (اختياري)
Determines the
statistics type used to compute flow distance over multiple flow paths. If
there is only a single flow path from each cell to a cell on the stream, all
statistics types produce the same result.
·MINIMUM—Where multiple flow paths exist, minimum flow distance in
computed. This is the default.
·WEIGHTED_MEAN—Where multiple flow paths exist, a weighted mean of
flow distance is computed. Flow proportion from a cell to its downstream
neighboring cells are used as weights for computing weighted mean.
·MAXIMUM—When multiple flow paths exist, maximum flow distance is
computed.
يحدد نوع الإحصائيات المستخدم لحساب مسافة التدفق
عبر مسارات تدفق متعددة. إذا كان هناك مسار تدفق واحد فقط من كل خلية إلى خلية في
الدفق ، فإن جميع أنواع الإحصائيات تنتج نفس النتيجة.
• الحد الأدنى - عند وجود
مسارات تدفق متعددة ، يتم حساب مسافة التدفق الدنيا. هذا هو الافتراضي.
• WEIGHTED_MEAN - في حالة وجود مسارات تدفق متعددة ، يتم حساب المتوسط المرجح
لمسافة التدفق. يتم استخدام نسبة التدفق من خلية إلى الخلايا المجاورة لها في
اتجاه مجرى النهر كأوزان لحساب المتوسط المرجح.
• الحد الأقصى - عند وجود
مسارات تدفق متعددة ، يتم حساب أقصى مسافة للتدفق.
اليك صفحه ومجموعة على الفيس بوك لتعلم أكثر بما يخص نظم المعلومات الجغرافية (GIS) و برنامج ArcGIS Pro من خلال هذه الروابط:
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