preferred way to eliminate sdc time value truncated messages

As I mentioned, this was just one example. This particular design uses a TI high-speed ADC, so I've adapted rysc's source synchronous example for the ADS4149 to my design.

#  trace length in inches
set BD_adc_data_len_min 0.720
set BD_adc_data_len_max 0.830
set BD_adc_clock_len 1.070
#  propagation delay for outer trace in ns/inch
set BD_prop 0.140
#  propagation delay of traces in ns
set BD_adc_data_min 
set BD_adc_data_max 
set BD_adc_clock 
# ################## ADS4122 -> FPGA Interface# ###################
#  Create virtual clock for ADS4122.  Phase-shift it -90 degrees to say
#  it is center-aligned
create_generated_clock -source  -phase -90 -name clk_adc_in
#  The device does not spec what it is actually doing, but what it can
#  provide.  We will use our relationship to figure out what the
#  ADS4122 is actually doing We will need to know the setup
#  relationship and hold relationship to perform this calculation,
#  which are just +90 degrees and -90 degrees in Explicit Clock Shift
#  Mode
set relationship 
#  TI ADS4122 datasheet says it can provide a Tsu and Th to the FPGA:
set adc_tsu 2.3
set adc_th 0.35
#  Need to calculate whave ADS4122 is actually doing
set adc_skew_max 
set adc_skew_min 
#  The board skew need to be accounted for.  Positive means data is
#  longer than clk, negative means it is shorter than clk.
set board_data2clk_skew_max 
set board_data2clk_skew_min 
#  Now just add the ADC skew and board skew to calculate external delays:
set adc_data_max 
# set adc_data_max 
set adc_data_min 
# set adc_data_min 
set_input_delay -clock clk_adc_in -max $adc_data_max }]
set_input_delay -clock clk_adc_in -min $adc_data_min }]
set_input_delay -clock clk_adc_in -max $adc_data_max }] -clock_fall -add_delay
set_input_delay -clock clk_adc_in -min $adc_data_min }] -clock_fall -add_delay

As you can see, there are many calculations here. It would be unwieldy to hard code all the values. Additionally, it's easy to imagine a more sophisticated setup where board trace lengths or other values are brought in automatically from other tools. Anyway, I'm surprised there isn't an easy way to eliminate these truncation messages.