Canonical explanations and fixes for opencascade toolchain error signatures.
Standard_ConstructionError is an exception thrown by Open CASCADE Technology (OCCT) when a geometric entity or topological shape cannot be built due to invalid input parameters or violated mathematical constraints.
Standard_DimensionError is an exception in Open CASCADE Technology (OCCT) indicating an operation was attempted on operands, such as matrices, vectors, or arrays, that have incompatible dimensions.
An exception raised in Open CASCADE Technology (OCCT) when an operation encounters data structures, such as arrays, vectors, or matrices, with incompatible bounds, sizes, or dimensions.
Standard_DivideByZero is an OCCT exception signaling an attempt to divide by zero. It is explicitly thrown by geometric routines or emitted via hardware traps to prevent undefined behavior.
In Open CASCADE Technology, Standard_MultiplyDefined is a C++ exception thrown when an attempt is made to bind or define an element using a key that already exists in a context requiring strict uniqueness, such as within an NCollection_DoubleMap.
Standard_NegativeValue is an OCCT exception raised when a geometric or topological algorithm receives a negative parameter for a quantity that must be strictly positive, such as a radius or offset distance.
An exception raised by Open CASCADE Technology (OCCT) when an operation attempts to access a requested geometric or topological object that does not exist, or queries a property undefined for the current state.
An exception thrown by the Open CASCADE Technology (OCCT) geometry kernel when an index or parameter falls outside the valid bounds of a collection or geometric entity. This commonly occurs due to 0-indexing errors, as many OCCT collections dynamically define bounds and are conventionally 1-indexed.
Standard_Overflow is an Open CASCADE Technology (OCCT) diagnostic exception emitted when a numeric operation computes a value exceeding the bounds of the underlying data type, such as DBL_MAX for a floating-point type [1].
A core OCCT exception raised when a critical programmatic invariant is violated, most commonly by attempting to create an intrusive handle to a stack-allocated transient object.
`Standard_RangeError` is a C++ exception thrown by Open CASCADE Technology (OCCT) when an index accesses a collection or mathematical structure outside its defined bounds.
The `Standard_Underflow` diagnostic is a C++ exception in Open CASCADE Technology (OCCT) raised when a floating-point calculation evaluates to a subnormal value. It typically occurs when hardware floating-point exceptions (FPE) are enabled globally via `OSD::SetSignal()` and caught using the `OCC_CATCH_SIGNALS` macro.
The Standard_LicenseNotFound diagnostic is a C++ exception in Open CASCADE Technology (OCCT) indicating that a requested commercial or proprietary add-on module failed to locate a valid software license.